Home / 87,941.11-131,909.84-21,381.59

Finding the Fourth Proportional to 87,941.11, 131,909.84 and 21,381.59

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Solution

The fourth proportional to 87,941.11, 131,909.84 and 21,381.59 is: 32,071.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,941.11 : 131,909.84 = 21,381.59 : x
  2. Step 2: Convert to fraction form
    87,941.11/131,909.84 = 21,381.59/x
  3. Step 3: Cross multiply
    87,941.11x = 131,909.84 × 21,381.59
  4. Step 4: Simplify right side
    87,941.11x = 2,820,442,115.85
  5. Step 5: Solve for x
    x = 2,820,442,115.85/87,941.11
  6. Step 6: Final answer
    x = 32,071.94

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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.