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Finding the Fourth Proportional to 63.79, 94.85 and 62.17

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Solution

The fourth proportional to 63.79, 94.85 and 62.17 is: 92.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.79 : 94.85 = 62.17 : x
  2. Step 2: Convert to fraction form
    63.79/94.85 = 62.17/x
  3. Step 3: Cross multiply
    63.79x = 94.85 × 62.17
  4. Step 4: Simplify right side
    63.79x = 5,896.82
  5. Step 5: Solve for x
    x = 5,896.82/63.79
  6. Step 6: Final answer
    x = 92.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.