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Finding the Fourth Proportional to 68.97, 95.17 and 37.88

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Solution

The fourth proportional to 68.97, 95.17 and 37.88 is: 52.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68.97 : 95.17 = 37.88 : x
  2. Step 2: Convert to fraction form
    68.97/95.17 = 37.88/x
  3. Step 3: Cross multiply
    68.97x = 95.17 × 37.88
  4. Step 4: Simplify right side
    68.97x = 3,604.85
  5. Step 5: Solve for x
    x = 3,604.85/68.97
  6. Step 6: Final answer
    x = 52.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.