Finding the Fourth Proportional to 81,951.16, 122,885.56 and 47,767.92
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Solution
The fourth proportional to 81,951.16, 122,885.56 and 47,767.92 is: 71,627.88
Step by Step Solution
- Step 1: Write the proportion equation
81,951.16 : 122,885.56 = 47,767.92 : x - Step 2: Convert to fraction form
81,951.16/122,885.56 = 47,767.92/x - Step 3: Cross multiply
81,951.16x = 122,885.56 × 47,767.92 - Step 4: Simplify right side
81,951.16x = 5,869,987,599.24 - Step 5: Solve for x
x = 5,869,987,599.24/81,951.16 - Step 6: Final answer
x = 71,627.88
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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.