Finding the Fourth Proportional to 87,128.67, 130,697.88 and 24,794.31
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Solution
The fourth proportional to 87,128.67, 130,697.88 and 24,794.31 is: 37,192.85
Step by Step Solution
- Step 1: Write the proportion equation
87,128.67 : 130,697.88 = 24,794.31 : x - Step 2: Convert to fraction form
87,128.67/130,697.88 = 24,794.31/x - Step 3: Cross multiply
87,128.67x = 130,697.88 × 24,794.31 - Step 4: Simplify right side
87,128.67x = 3,240,563,753.06 - Step 5: Solve for x
x = 3,240,563,753.06/87,128.67 - Step 6: Final answer
x = 37,192.85
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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.