Here's updated standings with PPG, PPG needed to 46 pts, and the maximum points they can finish with.
Code:
Eastern Conference
# Club Pts GP W L T PPG PPG to 46 Max Pts Possible
1 Sporting KC 40 23 12 7 4 1.74 0.55 73
2 Houston Dynamo 40 23 11 5 7 1.74 0.55 73
3 NY Red Bulls 38 23 11 7 5 1.65 0.73 71
4 D.C. United 36 21 11 7 3 1.71 0.77 75
5 Chicago Fire 35 22 10 7 5 1.59 0.92 71
6 Montreal Impact 30 25 9 13 3 1.20 1.78 57
7 Columbus Crew 28 20 8 8 4 1.40 1.29 70
8 Philly Union 23 20 7 11 2 1.15 1.64 65
9 NE Revolution 23 22 6 11 5 1.05 1.92 59
10 Toronto FC 19 22 5 13 4 0.86 2.25 55
Western Conference
# Club Pts GP W L T PPG PPG to 46 Max Pts Possible
1 SJ Earthquakes 44 23 13 5 5 1.91 0.18 77
2 Real Salt Lake 42 24 13 8 3 1.75 0.40 72
3 Sounders FC 37 22 10 5 7 1.68 0.75 73
4 Whitecaps FC 34 23 9 7 7 1.48 1.09 67
5 LA Galaxy 33 23 10 10 3 1.43 1.18 66
6 Chivas USA 26 20 7 8 5 1.30 1.43 68
7 Colorado Rapids 25 23 8 14 1 1.09 1.91 58
8 FC Dallas 23 24 5 11 8 0.96 2.30 53
9 Timbers 20 22 5 12 5 0.91 2.17 56
IMO, if you need to average close to 2 points per game to finish with 46, you're done(especially when it may take 47 or 48 points to lock up 5th or better). That includes the Revs and TFC in the East, and the Rapids, FCD and the Timbers in the West.