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Finding the Fourth Proportional to 63.25, 94.88 and 39.25

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Solution

The fourth proportional to 63.25, 94.88 and 39.25 is: 58.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.25 : 94.88 = 39.25 : x
  2. Step 2: Convert to fraction form
    63.25/94.88 = 39.25/x
  3. Step 3: Cross multiply
    63.25x = 94.88 × 39.25
  4. Step 4: Simplify right side
    63.25x = 3,724.04
  5. Step 5: Solve for x
    x = 3,724.04/63.25
  6. Step 6: Final answer
    x = 58.88

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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.