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Finding the Fourth Proportional to 87,191.52, 130,787.36 and 21,527.52

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Solution

The fourth proportional to 87,191.52, 130,787.36 and 21,527.52 is: 32,291.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,191.52 : 130,787.36 = 21,527.52 : x
  2. Step 2: Convert to fraction form
    87,191.52/130,787.36 = 21,527.52/x
  3. Step 3: Cross multiply
    87,191.52x = 130,787.36 × 21,527.52
  4. Step 4: Simplify right side
    87,191.52x = 2,815,527,508.15
  5. Step 5: Solve for x
    x = 2,815,527,508.15/87,191.52
  6. Step 6: Final answer
    x = 32,291.30

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1.5x scale

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.