Home / 71,463.13-107,186.45-18,876.71

Finding the Fourth Proportional to 71,463.13, 107,186.45 and 18,876.71

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Solution

The fourth proportional to 71,463.13, 107,186.45 and 18,876.71 is: 28,312.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,463.13 : 107,186.45 = 18,876.71 : x
  2. Step 2: Convert to fraction form
    71,463.13/107,186.45 = 18,876.71/x
  3. Step 3: Cross multiply
    71,463.13x = 107,186.45 × 18,876.71
  4. Step 4: Simplify right side
    71,463.13x = 2,023,327,706.16
  5. Step 5: Solve for x
    x = 2,023,327,706.16/71,463.13
  6. Step 6: Final answer
    x = 28,312.89

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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.