Home / 87,863.20-121,251.28-47,577.28

Finding the Fourth Proportional to 87,863.20, 121,251.28 and 47,577.28

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Solution

The fourth proportional to 87,863.20, 121,251.28 and 47,577.28 is: 65,656.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,863.20 : 121,251.28 = 47,577.28 : x
  2. Step 2: Convert to fraction form
    87,863.20/121,251.28 = 47,577.28/x
  3. Step 3: Cross multiply
    87,863.20x = 121,251.28 × 47,577.28
  4. Step 4: Simplify right side
    87,863.20x = 5,768,806,098.92
  5. Step 5: Solve for x
    x = 5,768,806,098.92/87,863.20
  6. Step 6: Final answer
    x = 65,656.68

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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.