Proportions Worksheet

1 a.
78   =   b
90 45








1 b.
b   =   60
11 44








2 a.
a   =   31
42 21








2 b.
11   =   x
3 12








3 a.
30   =   15
70 d








3 b.
36   =   b
5 10








Page 2

Answer Key

1 a. b = 39
1 b. b = 15
2 a. a = 62
2 b. x = 44
3 a. d = 35
3 b. b = 72


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