Finding the Fourth Proportional to 71,920.74, 107,882.01 and 27,550.17
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Solution
The fourth proportional to 71,920.74, 107,882.01 and 27,550.17 is: 41,325.60
Step by Step Solution
- Step 1: Write the proportion equation
71,920.74 : 107,882.01 = 27,550.17 : x - Step 2: Convert to fraction form
71,920.74/107,882.01 = 27,550.17/x - Step 3: Cross multiply
71,920.74x = 107,882.01 × 27,550.17 - Step 4: Simplify right side
71,920.74x = 2,972,167,715.44 - Step 5: Solve for x
x = 2,972,167,715.44/71,920.74 - Step 6: Final answer
x = 41,325.60
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1.5x scale
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.