Home / 87,974.52-131,959.92-21,415.02

Finding the Fourth Proportional to 87,974.52, 131,959.92 and 21,415.02

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Solution

The fourth proportional to 87,974.52, 131,959.92 and 21,415.02 is: 32,122.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,974.52 : 131,959.92 = 21,415.02 : x
  2. Step 2: Convert to fraction form
    87,974.52/131,959.92 = 21,415.02/x
  3. Step 3: Cross multiply
    87,974.52x = 131,959.92 × 21,415.02
  4. Step 4: Simplify right side
    87,974.52x = 2,825,924,326.00
  5. Step 5: Solve for x
    x = 2,825,924,326.00/87,974.52
  6. Step 6: Final answer
    x = 32,122.08

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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.