What ratio is represented in the table ? 2:3 3:5 4:5What number completes the table of equivalent ratios ? 62 64 68

1. The tables represent a ratio of 3:5. For example, 6 x 3 = 18, and 6 x 5 = 30. Also, 20 x 3 = 60, and 20 x 5 = 100. 
2. The table has a ratio of 3:4, so the missing blank is 64.