Finding the Fourth Proportional to 73,315.13, 101,174.87 and 39,781.13
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Solution
The fourth proportional to 73,315.13, 101,174.87 and 39,781.13 is: 54,897.95
Step by Step Solution
- Step 1: Write the proportion equation
73,315.13 : 101,174.87 = 39,781.13 : x - Step 2: Convert to fraction form
73,315.13/101,174.87 = 39,781.13/x - Step 3: Cross multiply
73,315.13x = 101,174.87 × 39,781.13 - Step 4: Simplify right side
73,315.13x = 4,024,850,249.78 - Step 5: Solve for x
x = 4,024,850,249.78/73,315.13 - Step 6: Final answer
x = 54,897.95
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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.