Home / 87,910.60-131,772.94-28,730.40

Finding the Fourth Proportional to 87,910.60, 131,772.94 and 28,730.40

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Solution

The fourth proportional to 87,910.60, 131,772.94 and 28,730.40 is: 43,065.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,910.60 : 131,772.94 = 28,730.40 : x
  2. Step 2: Convert to fraction form
    87,910.60/131,772.94 = 28,730.40/x
  3. Step 3: Cross multiply
    87,910.60x = 131,772.94 × 28,730.40
  4. Step 4: Simplify right side
    87,910.60x = 3,785,889,275.38
  5. Step 5: Solve for x
    x = 3,785,889,275.38/87,910.60
  6. Step 6: Final answer
    x = 43,065.22

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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.