Home / 87,389.60-131,001.35-55,710.73

Finding the Fourth Proportional to 87,389.60, 131,001.35 and 55,710.73

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Solution

The fourth proportional to 87,389.60, 131,001.35 and 55,710.73 is: 83,513.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,389.60 : 131,001.35 = 55,710.73 : x
  2. Step 2: Convert to fraction form
    87,389.60/131,001.35 = 55,710.73/x
  3. Step 3: Cross multiply
    87,389.60x = 131,001.35 × 55,710.73
  4. Step 4: Simplify right side
    87,389.60x = 7,298,180,724.68
  5. Step 5: Solve for x
    x = 7,298,180,724.68/87,389.60
  6. Step 6: Final answer
    x = 83,513.15

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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.