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Finding the Fourth Proportional to 63,930.70, 95,887.65 and 19,561.90

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Solution

The fourth proportional to 63,930.70, 95,887.65 and 19,561.90 is: 29,340.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,930.70 : 95,887.65 = 19,561.90 : x
  2. Step 2: Convert to fraction form
    63,930.70/95,887.65 = 19,561.90/x
  3. Step 3: Cross multiply
    63,930.70x = 95,887.65 × 19,561.90
  4. Step 4: Simplify right side
    63,930.70x = 1,875,744,620.54
  5. Step 5: Solve for x
    x = 1,875,744,620.54/63,930.70
  6. Step 6: Final answer
    x = 29,340.28

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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.