Solving Proportion Problems

Question 1:

y is directly proportional to the square root of x. When x = 49, y = 42, find y when x = 121.

66

Question 2:

y is directly proportional to the square root of x. When x = 9, y = 15, find y when x = 36.

30

Question 3:

y is inversely proportional to the cube root of x. When x = 8, y = 3, find y when x = 27.

2

Question 4:

y is inversely proportional to the square root of x. When x = 16, y = 7, find y when x = 49.

4