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Finding the Fourth Proportional to 45.65, 63.29 and 44.15

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Solution

The fourth proportional to 45.65, 63.29 and 44.15 is: 61.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45.65 : 63.29 = 44.15 : x
  2. Step 2: Convert to fraction form
    45.65/63.29 = 44.15/x
  3. Step 3: Cross multiply
    45.65x = 63.29 × 44.15
  4. Step 4: Simplify right side
    45.65x = 2,794.25
  5. Step 5: Solve for x
    x = 2,794.25/45.65
  6. Step 6: Final answer
    x = 61.21

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.