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Finding the Fourth Proportional to 87,195.60, 130,693.92 and 39,704.88

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Solution

The fourth proportional to 87,195.60, 130,693.92 and 39,704.88 is: 59,512.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,195.60 : 130,693.92 = 39,704.88 : x
  2. Step 2: Convert to fraction form
    87,195.60/130,693.92 = 39,704.88/x
  3. Step 3: Cross multiply
    87,195.60x = 130,693.92 × 39,704.88
  4. Step 4: Simplify right side
    87,195.60x = 5,189,186,410.33
  5. Step 5: Solve for x
    x = 5,189,186,410.33/87,195.60
  6. Step 6: Final answer
    x = 59,512.02

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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.