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Finding the Fourth Proportional to 64.11, 95.48 and 63.41

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Solution

The fourth proportional to 64.11, 95.48 and 63.41 is: 94.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64.11 : 95.48 = 63.41 : x
  2. Step 2: Convert to fraction form
    64.11/95.48 = 63.41/x
  3. Step 3: Cross multiply
    64.11x = 95.48 × 63.41
  4. Step 4: Simplify right side
    64.11x = 6,053.59
  5. Step 5: Solve for x
    x = 6,053.59/64.11
  6. Step 6: Final answer
    x = 94.43

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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.