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Finding the Fourth Proportional to 79,445.87, 119,169.00 and 19,474.61

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Solution

The fourth proportional to 79,445.87, 119,169.00 and 19,474.61 is: 29,211.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,445.87 : 119,169.00 = 19,474.61 : x
  2. Step 2: Convert to fraction form
    79,445.87/119,169.00 = 19,474.61/x
  3. Step 3: Cross multiply
    79,445.87x = 119,169.00 × 19,474.61
  4. Step 4: Simplify right side
    79,445.87x = 2,320,769,690.66
  5. Step 5: Solve for x
    x = 2,320,769,690.66/79,445.87
  6. Step 6: Final answer
    x = 29,211.96

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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.