Home / 87,179.22-130,900.05-49,781.52

Finding the Fourth Proportional to 87,179.22, 130,900.05 and 49,781.52

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Solution

The fourth proportional to 87,179.22, 130,900.05 and 49,781.52 is: 74,747.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,179.22 : 130,900.05 = 49,781.52 : x
  2. Step 2: Convert to fraction form
    87,179.22/130,900.05 = 49,781.52/x
  3. Step 3: Cross multiply
    87,179.22x = 130,900.05 × 49,781.52
  4. Step 4: Simplify right side
    87,179.22x = 6,516,403,457.08
  5. Step 5: Solve for x
    x = 6,516,403,457.08/87,179.22
  6. Step 6: Final answer
    x = 74,747.21

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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.