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Finding the Fourth Proportional to 44.87, 61.88 and 39.67

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Solution

The fourth proportional to 44.87, 61.88 and 39.67 is: 54.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.87 : 61.88 = 39.67 : x
  2. Step 2: Convert to fraction form
    44.87/61.88 = 39.67/x
  3. Step 3: Cross multiply
    44.87x = 61.88 × 39.67
  4. Step 4: Simplify right side
    44.87x = 2,454.43
  5. Step 5: Solve for x
    x = 2,454.43/44.87
  6. Step 6: Final answer
    x = 54.71

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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.