Home / 87,864.29-121,252.17-47,577.20

Finding the Fourth Proportional to 87,864.29, 121,252.17 and 47,577.20

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Solution

The fourth proportional to 87,864.29, 121,252.17 and 47,577.20 is: 65,656.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,864.29 : 121,252.17 = 47,577.20 : x
  2. Step 2: Convert to fraction form
    87,864.29/121,252.17 = 47,577.20/x
  3. Step 3: Cross multiply
    87,864.29x = 121,252.17 × 47,577.20
  4. Step 4: Simplify right side
    87,864.29x = 5,768,838,742.52
  5. Step 5: Solve for x
    x = 5,768,838,742.52/87,864.29
  6. Step 6: Final answer
    x = 65,656.24

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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.