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Finding the Fourth Proportional to 63.50, 95.26 and 45.42

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Solution

The fourth proportional to 63.50, 95.26 and 45.42 is: 68.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.50 : 95.26 = 45.42 : x
  2. Step 2: Convert to fraction form
    63.50/95.26 = 45.42/x
  3. Step 3: Cross multiply
    63.50x = 95.26 × 45.42
  4. Step 4: Simplify right side
    63.50x = 4,326.71
  5. Step 5: Solve for x
    x = 4,326.71/63.50
  6. Step 6: Final answer
    x = 68.14

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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.