Home / 65,708.76-98,540.92-20,729.73

Finding the Fourth Proportional to 65,708.76, 98,540.92 and 20,729.73

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Solution

The fourth proportional to 65,708.76, 98,540.92 and 20,729.73 is: 31,087.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,708.76 : 98,540.92 = 20,729.73 : x
  2. Step 2: Convert to fraction form
    65,708.76/98,540.92 = 20,729.73/x
  3. Step 3: Cross multiply
    65,708.76x = 98,540.92 × 20,729.73
  4. Step 4: Simplify right side
    65,708.76x = 2,042,726,665.55
  5. Step 5: Solve for x
    x = 2,042,726,665.55/65,708.76
  6. Step 6: Final answer
    x = 31,087.59

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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.