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Finding the Fourth Proportional to 87,658.40, 131,487.60 and 32,247.20

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Solution

The fourth proportional to 87,658.40, 131,487.60 and 32,247.20 is: 48,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,658.40 : 131,487.60 = 32,247.20 : x
  2. Step 2: Convert to fraction form
    87,658.40/131,487.60 = 32,247.20/x
  3. Step 3: Cross multiply
    87,658.40x = 131,487.60 × 32,247.20
  4. Step 4: Simplify right side
    87,658.40x = 4,240,106,934.72
  5. Step 5: Solve for x
    x = 4,240,106,934.72/87,658.40
  6. Step 6: Final answer
    x = 48,370.80

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1.5x scale

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.