Home / 87,773.97-121,142.56-53,801.35

Finding the Fourth Proportional to 87,773.97, 121,142.56 and 53,801.35

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Solution

The fourth proportional to 87,773.97, 121,142.56 and 53,801.35 is: 74,254.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,773.97 : 121,142.56 = 53,801.35 : x
  2. Step 2: Convert to fraction form
    87,773.97/121,142.56 = 53,801.35/x
  3. Step 3: Cross multiply
    87,773.97x = 121,142.56 × 53,801.35
  4. Step 4: Simplify right side
    87,773.97x = 6,517,633,270.46
  5. Step 5: Solve for x
    x = 6,517,633,270.46/87,773.97
  6. Step 6: Final answer
    x = 74,254.74

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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.