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Finding the Fourth Proportional to 63,666, 95,499 and 19,890

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Solution

The fourth proportional to 63,666, 95,499 and 19,890 is: 29,835

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,666 : 95,499 = 19,890 : x
  2. Step 2: Convert to fraction form
    63,666/95,499 = 19,890/x
  3. Step 3: Cross multiply
    63,666x = 95,499 × 19,890
  4. Step 4: Simplify right side
    63,666x = 1,899,475,110
  5. Step 5: Solve for x
    x = 1,899,475,110/63,666
  6. Step 6: Final answer
    x = 29,835

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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.