Finding the Fourth Proportional to 69,034.11, 103,385.09 and 39,361.99
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Solution
The fourth proportional to 69,034.11, 103,385.09 and 39,361.99 is: 58,948.28
Step by Step Solution
- Step 1: Write the proportion equation
69,034.11 : 103,385.09 = 39,361.99 : x - Step 2: Convert to fraction form
69,034.11/103,385.09 = 39,361.99/x - Step 3: Cross multiply
69,034.11x = 103,385.09 × 39,361.99 - Step 4: Simplify right side
69,034.11x = 4,069,442,164.99 - Step 5: Solve for x
x = 4,069,442,164.99/69,034.11 - Step 6: Final answer
x = 58,948.28
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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.