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Finding the Fourth Proportional to 63.06, 94.48 and 45.85

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Solution

The fourth proportional to 63.06, 94.48 and 45.85 is: 68.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.06 : 94.48 = 45.85 : x
  2. Step 2: Convert to fraction form
    63.06/94.48 = 45.85/x
  3. Step 3: Cross multiply
    63.06x = 94.48 × 45.85
  4. Step 4: Simplify right side
    63.06x = 4,331.91
  5. Step 5: Solve for x
    x = 4,331.91/63.06
  6. Step 6: Final answer
    x = 68.70

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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.