Home / 87,339.83-130,916.33-45,177.48

Finding the Fourth Proportional to 87,339.83, 130,916.33 and 45,177.48

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Solution

The fourth proportional to 87,339.83, 130,916.33 and 45,177.48 is: 67,717.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,339.83 : 130,916.33 = 45,177.48 : x
  2. Step 2: Convert to fraction form
    87,339.83/130,916.33 = 45,177.48/x
  3. Step 3: Cross multiply
    87,339.83x = 130,916.33 × 45,177.48
  4. Step 4: Simplify right side
    87,339.83x = 5,914,469,654.36
  5. Step 5: Solve for x
    x = 5,914,469,654.36/87,339.83
  6. Step 6: Final answer
    x = 67,717.90

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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.