Finding the Fourth Proportional to 75,759.81, 113,656.13 and 29,012.69
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Solution
The fourth proportional to 75,759.81, 113,656.13 and 29,012.69 is: 43,525.32
Step by Step Solution
- Step 1: Write the proportion equation
75,759.81 : 113,656.13 = 29,012.69 : x - Step 2: Convert to fraction form
75,759.81/113,656.13 = 29,012.69/x - Step 3: Cross multiply
75,759.81x = 113,656.13 × 29,012.69 - Step 4: Simplify right side
75,759.81x = 3,297,470,066.29 - Step 5: Solve for x
x = 3,297,470,066.29/75,759.81 - Step 6: Final answer
x = 43,525.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.