Home / 87,432.40-131,062.20-34,771.60

Finding the Fourth Proportional to 87,432.40, 131,062.20 and 34,771.60

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Solution

The fourth proportional to 87,432.40, 131,062.20 and 34,771.60 is: 52,123.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,432.40 : 131,062.20 = 34,771.60 : x
  2. Step 2: Convert to fraction form
    87,432.40/131,062.20 = 34,771.60/x
  3. Step 3: Cross multiply
    87,432.40x = 131,062.20 × 34,771.60
  4. Step 4: Simplify right side
    87,432.40x = 4,557,242,393.52
  5. Step 5: Solve for x
    x = 4,557,242,393.52/87,432.40
  6. Step 6: Final answer
    x = 52,123.04

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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.