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Finding the Fourth Proportional to 63,860.70, 95,791.05 and 19,487.68

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Solution

The fourth proportional to 63,860.70, 95,791.05 and 19,487.68 is: 29,231.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,860.70 : 95,791.05 = 19,487.68 : x
  2. Step 2: Convert to fraction form
    63,860.70/95,791.05 = 19,487.68/x
  3. Step 3: Cross multiply
    63,860.70x = 95,791.05 × 19,487.68
  4. Step 4: Simplify right side
    63,860.70x = 1,866,745,329.26
  5. Step 5: Solve for x
    x = 1,866,745,329.26/63,860.70
  6. Step 6: Final answer
    x = 29,231.52

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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.