Finding the Fourth Proportional to 73,442.38, 101,351.09 and 39,908.38
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Solution
The fourth proportional to 73,442.38, 101,351.09 and 39,908.38 is: 55,073.89
Step by Step Solution
- Step 1: Write the proportion equation
73,442.38 : 101,351.09 = 39,908.38 : x - Step 2: Convert to fraction form
73,442.38/101,351.09 = 39,908.38/x - Step 3: Cross multiply
73,442.38x = 101,351.09 × 39,908.38 - Step 4: Simplify right side
73,442.38x = 4,044,757,813.13 - Step 5: Solve for x
x = 4,044,757,813.13/73,442.38 - Step 6: Final answer
x = 55,073.89
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.