Home / 87,853.95-131,779.76-21,294.66

Finding the Fourth Proportional to 87,853.95, 131,779.76 and 21,294.66

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Solution

The fourth proportional to 87,853.95, 131,779.76 and 21,294.66 is: 31,941.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,853.95 : 131,779.76 = 21,294.66 : x
  2. Step 2: Convert to fraction form
    87,853.95/131,779.76 = 21,294.66/x
  3. Step 3: Cross multiply
    87,853.95x = 131,779.76 × 21,294.66
  4. Step 4: Simplify right side
    87,853.95x = 2,806,205,691.56
  5. Step 5: Solve for x
    x = 2,806,205,691.56/87,853.95
  6. Step 6: Final answer
    x = 31,941.71

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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.