Home / 68,456.20-102,687.97-21,712.72

Finding the Fourth Proportional to 68,456.20, 102,687.97 and 21,712.72

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Solution

The fourth proportional to 68,456.20, 102,687.97 and 21,712.72 is: 32,570.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,456.20 : 102,687.97 = 21,712.72 : x
  2. Step 2: Convert to fraction form
    68,456.20/102,687.97 = 21,712.72/x
  3. Step 3: Cross multiply
    68,456.20x = 102,687.97 × 21,712.72
  4. Step 4: Simplify right side
    68,456.20x = 2,229,635,139.98
  5. Step 5: Solve for x
    x = 2,229,635,139.98/68,456.20
  6. Step 6: Final answer
    x = 32,570.24

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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.