Finding the Fourth Proportional to 87,754.59, 131,551.12 and 47,715.08
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Solution
The fourth proportional to 87,754.59, 131,551.12 and 47,715.08 is: 71,528.70
Step by Step Solution
- Step 1: Write the proportion equation
87,754.59 : 131,551.12 = 47,715.08 : x - Step 2: Convert to fraction form
87,754.59/131,551.12 = 47,715.08/x - Step 3: Cross multiply
87,754.59x = 131,551.12 × 47,715.08 - Step 4: Simplify right side
87,754.59x = 6,276,971,616.78 - Step 5: Solve for x
x = 6,276,971,616.78/87,754.59 - Step 6: Final answer
x = 71,528.70
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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.