Home / 87,801.44-121,153.02-51,489.17

Finding the Fourth Proportional to 87,801.44, 121,153.02 and 51,489.17

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Solution

The fourth proportional to 87,801.44, 121,153.02 and 51,489.17 is: 71,047.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,801.44 : 121,153.02 = 51,489.17 : x
  2. Step 2: Convert to fraction form
    87,801.44/121,153.02 = 51,489.17/x
  3. Step 3: Cross multiply
    87,801.44x = 121,153.02 × 51,489.17
  4. Step 4: Simplify right side
    87,801.44x = 6,238,068,098.27
  5. Step 5: Solve for x
    x = 6,238,068,098.27/87,801.44
  6. Step 6: Final answer
    x = 71,047.45

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1.5x scale

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.