Home / 68,519.84-102,757.89-21,761.78

Finding the Fourth Proportional to 68,519.84, 102,757.89 and 21,761.78

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Solution

The fourth proportional to 68,519.84, 102,757.89 and 21,761.78 is: 32,635.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,519.84 : 102,757.89 = 21,761.78 : x
  2. Step 2: Convert to fraction form
    68,519.84/102,757.89 = 21,761.78/x
  3. Step 3: Cross multiply
    68,519.84x = 102,757.89 × 21,761.78
  4. Step 4: Simplify right side
    68,519.84x = 2,236,194,595.44
  5. Step 5: Solve for x
    x = 2,236,194,595.44/68,519.84
  6. Step 6: Final answer
    x = 32,635.72

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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.