Home / 87,802.25-121,167.96-47,516.86

Finding the Fourth Proportional to 87,802.25, 121,167.96 and 47,516.86

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Solution

The fourth proportional to 87,802.25, 121,167.96 and 47,516.86 is: 65,573.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,802.25 : 121,167.96 = 47,516.86 : x
  2. Step 2: Convert to fraction form
    87,802.25/121,167.96 = 47,516.86/x
  3. Step 3: Cross multiply
    87,802.25x = 121,167.96 × 47,516.86
  4. Step 4: Simplify right side
    87,802.25x = 5,757,520,385.97
  5. Step 5: Solve for x
    x = 5,757,520,385.97/87,802.25
  6. Step 6: Final answer
    x = 65,573.72

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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.