Finding the Fourth Proportional to 71,420.85, 107,132.36 and 27,035.69
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Solution
The fourth proportional to 71,420.85, 107,132.36 and 27,035.69 is: 40,553.94
Step by Step Solution
- Step 1: Write the proportion equation
71,420.85 : 107,132.36 = 27,035.69 : x - Step 2: Convert to fraction form
71,420.85/107,132.36 = 27,035.69/x - Step 3: Cross multiply
71,420.85x = 107,132.36 × 27,035.69 - Step 4: Simplify right side
71,420.85x = 2,896,396,603.09 - Step 5: Solve for x
x = 2,896,396,603.09/71,420.85 - Step 6: Final answer
x = 40,553.94
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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.