Finding the Fourth Proportional to 87,369.44, 130,915.92 and 52,265.12
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Solution
The fourth proportional to 87,369.44, 130,915.92 and 52,265.12 is: 78,314.98
Step by Step Solution
- Step 1: Write the proportion equation
87,369.44 : 130,915.92 = 52,265.12 : x - Step 2: Convert to fraction form
87,369.44/130,915.92 = 52,265.12/x - Step 3: Cross multiply
87,369.44x = 130,915.92 × 52,265.12 - Step 4: Simplify right side
87,369.44x = 6,842,336,268.71 - Step 5: Solve for x
x = 6,842,336,268.71/87,369.44 - Step 6: Final answer
x = 78,314.98
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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.