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Finding the Fourth Proportional to 44.57, 61.46 and 38.69

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Solution

The fourth proportional to 44.57, 61.46 and 38.69 is: 53.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.57 : 61.46 = 38.69 : x
  2. Step 2: Convert to fraction form
    44.57/61.46 = 38.69/x
  3. Step 3: Cross multiply
    44.57x = 61.46 × 38.69
  4. Step 4: Simplify right side
    44.57x = 2,377.85
  5. Step 5: Solve for x
    x = 2,377.85/44.57
  6. Step 6: Final answer
    x = 53.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.