Home / 57,789.24-86,680.08-18,348.72

Finding the Fourth Proportional to 57,789.24, 86,680.08 and 18,348.72

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Solution

The fourth proportional to 57,789.24, 86,680.08 and 18,348.72 is: 27,521.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,789.24 : 86,680.08 = 18,348.72 : x
  2. Step 2: Convert to fraction form
    57,789.24/86,680.08 = 18,348.72/x
  3. Step 3: Cross multiply
    57,789.24x = 86,680.08 × 18,348.72
  4. Step 4: Simplify right side
    57,789.24x = 1,590,468,517.50
  5. Step 5: Solve for x
    x = 1,590,468,517.50/57,789.24
  6. Step 6: Final answer
    x = 27,521.88

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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.