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Finding the Fourth Proportional to 41.44, 61.88 and 40.48

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Solution

The fourth proportional to 41.44, 61.88 and 40.48 is: 60.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.44 : 61.88 = 40.48 : x
  2. Step 2: Convert to fraction form
    41.44/61.88 = 40.48/x
  3. Step 3: Cross multiply
    41.44x = 61.88 × 40.48
  4. Step 4: Simplify right side
    41.44x = 2,504.90
  5. Step 5: Solve for x
    x = 2,504.90/41.44
  6. Step 6: Final answer
    x = 60.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.