Home / 68,519.34-102,757.14-21,761.28

Finding the Fourth Proportional to 68,519.34, 102,757.14 and 21,761.28

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Solution

The fourth proportional to 68,519.34, 102,757.14 and 21,761.28 is: 32,634.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,519.34 : 102,757.14 = 21,761.28 : x
  2. Step 2: Convert to fraction form
    68,519.34/102,757.14 = 21,761.28/x
  3. Step 3: Cross multiply
    68,519.34x = 102,757.14 × 21,761.28
  4. Step 4: Simplify right side
    68,519.34x = 2,236,126,895.54
  5. Step 5: Solve for x
    x = 2,236,126,895.54/68,519.34
  6. Step 6: Final answer
    x = 32,634.97

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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.