Home / 47,725.92-71,589.78-12,665.88

Finding the Fourth Proportional to 47,725.92, 71,589.78 and 12,665.88

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Solution

The fourth proportional to 47,725.92, 71,589.78 and 12,665.88 is: 18,999.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,725.92 : 71,589.78 = 12,665.88 : x
  2. Step 2: Convert to fraction form
    47,725.92/71,589.78 = 12,665.88/x
  3. Step 3: Cross multiply
    47,725.92x = 71,589.78 × 12,665.88
  4. Step 4: Simplify right side
    47,725.92x = 906,747,562.71
  5. Step 5: Solve for x
    x = 906,747,562.71/47,725.92
  6. Step 6: Final answer
    x = 18,999.06

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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.