Home / 87,351.36-120,545.28-49,627.68

Finding the Fourth Proportional to 87,351.36, 120,545.28 and 49,627.68

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Solution

The fourth proportional to 87,351.36, 120,545.28 and 49,627.68 is: 68,486.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,351.36 : 120,545.28 = 49,627.68 : x
  2. Step 2: Convert to fraction form
    87,351.36/120,545.28 = 49,627.68/x
  3. Step 3: Cross multiply
    87,351.36x = 120,545.28 × 49,627.68
  4. Step 4: Simplify right side
    87,351.36x = 5,982,382,581.35
  5. Step 5: Solve for x
    x = 5,982,382,581.35/87,351.36
  6. Step 6: Final answer
    x = 68,486.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.