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Finding the Fourth Proportional to 63.05, 95.12 and 62.88

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Solution

The fourth proportional to 63.05, 95.12 and 62.88 is: 94.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.05 : 95.12 = 62.88 : x
  2. Step 2: Convert to fraction form
    63.05/95.12 = 62.88/x
  3. Step 3: Cross multiply
    63.05x = 95.12 × 62.88
  4. Step 4: Simplify right side
    63.05x = 5,980.47
  5. Step 5: Solve for x
    x = 5,980.47/63.05
  6. Step 6: Final answer
    x = 94.86

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.