Home / 87,943.60-132,012.60-54,701.20

Finding the Fourth Proportional to 87,943.60, 132,012.60 and 54,701.20

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Solution

The fourth proportional to 87,943.60, 132,012.60 and 54,701.20 is: 82,112.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,943.60 : 132,012.60 = 54,701.20 : x
  2. Step 2: Convert to fraction form
    87,943.60/132,012.60 = 54,701.20/x
  3. Step 3: Cross multiply
    87,943.60x = 132,012.60 × 54,701.20
  4. Step 4: Simplify right side
    87,943.60x = 7,221,247,635.12
  5. Step 5: Solve for x
    x = 7,221,247,635.12/87,943.60
  6. Step 6: Final answer
    x = 82,112.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.