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Finding the Fourth Proportional to 63,805.80, 95,722.57 and 19,431.42

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Solution

The fourth proportional to 63,805.80, 95,722.57 and 19,431.42 is: 29,151.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,805.80 : 95,722.57 = 19,431.42 : x
  2. Step 2: Convert to fraction form
    63,805.80/95,722.57 = 19,431.42/x
  3. Step 3: Cross multiply
    63,805.80x = 95,722.57 × 19,431.42
  4. Step 4: Simplify right side
    63,805.80x = 1,860,024,885.38
  5. Step 5: Solve for x
    x = 1,860,024,885.38/63,805.80
  6. Step 6: Final answer
    x = 29,151.34

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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.