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Finding the Fourth Proportional to 68.03, 101.99 and 40.61

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Solution

The fourth proportional to 68.03, 101.99 and 40.61 is: 60.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68.03 : 101.99 = 40.61 : x
  2. Step 2: Convert to fraction form
    68.03/101.99 = 40.61/x
  3. Step 3: Cross multiply
    68.03x = 101.99 × 40.61
  4. Step 4: Simplify right side
    68.03x = 4,141.41
  5. Step 5: Solve for x
    x = 4,141.41/68.03
  6. Step 6: Final answer
    x = 60.88

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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.