Home / 87,851.30-121,114.29-55,569.86

Finding the Fourth Proportional to 87,851.30, 121,114.29 and 55,569.86

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Solution

The fourth proportional to 87,851.30, 121,114.29 and 55,569.86 is: 76,610.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,851.30 : 121,114.29 = 55,569.86 : x
  2. Step 2: Convert to fraction form
    87,851.30/121,114.29 = 55,569.86/x
  3. Step 3: Cross multiply
    87,851.30x = 121,114.29 × 55,569.86
  4. Step 4: Simplify right side
    87,851.30x = 6,730,304,139.30
  5. Step 5: Solve for x
    x = 6,730,304,139.30/87,851.30
  6. Step 6: Final answer
    x = 76,610.18

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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.