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Finding the Fourth Proportional to 47,757.96, 71,641.47 and 19,679.91

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Solution

The fourth proportional to 47,757.96, 71,641.47 and 19,679.91 is: 29,521.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,757.96 : 71,641.47 = 19,679.91 : x
  2. Step 2: Convert to fraction form
    47,757.96/71,641.47 = 19,679.91/x
  3. Step 3: Cross multiply
    47,757.96x = 71,641.47 × 19,679.91
  4. Step 4: Simplify right side
    47,757.96x = 1,409,897,681.87
  5. Step 5: Solve for x
    x = 1,409,897,681.87/47,757.96
  6. Step 6: Final answer
    x = 29,521.73

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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.