Finding the Fourth Proportional to 87,915.26, 131,891.12 and 35,328.84
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Solution
The fourth proportional to 87,915.26, 131,891.12 and 35,328.84 is: 53,000.59
Step by Step Solution
- Step 1: Write the proportion equation
87,915.26 : 131,891.12 = 35,328.84 : x - Step 2: Convert to fraction form
87,915.26/131,891.12 = 35,328.84/x - Step 3: Cross multiply
87,915.26x = 131,891.12 × 35,328.84 - Step 4: Simplify right side
87,915.26x = 4,659,560,099.26 - Step 5: Solve for x
x = 4,659,560,099.26/87,915.26 - Step 6: Final answer
x = 53,000.59
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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.