Home / 87,992.10-131,988.42-21,432.24

Finding the Fourth Proportional to 87,992.10, 131,988.42 and 21,432.24

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Solution

The fourth proportional to 87,992.10, 131,988.42 and 21,432.24 is: 32,148.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,992.10 : 131,988.42 = 21,432.24 : x
  2. Step 2: Convert to fraction form
    87,992.10/131,988.42 = 21,432.24/x
  3. Step 3: Cross multiply
    87,992.10x = 131,988.42 × 21,432.24
  4. Step 4: Simplify right side
    87,992.10x = 2,828,807,494.66
  5. Step 5: Solve for x
    x = 2,828,807,494.66/87,992.10
  6. Step 6: Final answer
    x = 32,148.43

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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.