Finding the Fourth Proportional to 71,498.52, 107,213.68 and 26,488.99
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Solution
The fourth proportional to 71,498.52, 107,213.68 and 26,488.99 is: 39,720.85
Step by Step Solution
- Step 1: Write the proportion equation
71,498.52 : 107,213.68 = 26,488.99 : x - Step 2: Convert to fraction form
71,498.52/107,213.68 = 26,488.99/x - Step 3: Cross multiply
71,498.52x = 107,213.68 × 26,488.99 - Step 4: Simplify right side
71,498.52x = 2,839,982,097.38 - Step 5: Solve for x
x = 2,839,982,097.38/71,498.52 - Step 6: Final answer
x = 39,720.85
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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.