Home / 47,863.56-71,789.76-12,805.96

Finding the Fourth Proportional to 47,863.56, 71,789.76 and 12,805.96

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Solution

The fourth proportional to 47,863.56, 71,789.76 and 12,805.96 is: 19,207.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,863.56 : 71,789.76 = 12,805.96 : x
  2. Step 2: Convert to fraction form
    47,863.56/71,789.76 = 12,805.96/x
  3. Step 3: Cross multiply
    47,863.56x = 71,789.76 × 12,805.96
  4. Step 4: Simplify right side
    47,863.56x = 919,336,794.97
  5. Step 5: Solve for x
    x = 919,336,794.97/47,863.56
  6. Step 6: Final answer
    x = 19,207.45

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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.