Home / 87,926.38-131,889.74-21,366.57

Finding the Fourth Proportional to 87,926.38, 131,889.74 and 21,366.57

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Solution

The fourth proportional to 87,926.38, 131,889.74 and 21,366.57 is: 32,049.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,926.38 : 131,889.74 = 21,366.57 : x
  2. Step 2: Convert to fraction form
    87,926.38/131,889.74 = 21,366.57/x
  3. Step 3: Cross multiply
    87,926.38x = 131,889.74 × 21,366.57
  4. Step 4: Simplify right side
    87,926.38x = 2,818,031,361.99
  5. Step 5: Solve for x
    x = 2,818,031,361.99/87,926.38
  6. Step 6: Final answer
    x = 32,049.90

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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.