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Finding the Fourth Proportional to 41.34, 61.73 and 38.77

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Solution

The fourth proportional to 41.34, 61.73 and 38.77 is: 57.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.34 : 61.73 = 38.77 : x
  2. Step 2: Convert to fraction form
    41.34/61.73 = 38.77/x
  3. Step 3: Cross multiply
    41.34x = 61.73 × 38.77
  4. Step 4: Simplify right side
    41.34x = 2,393.07
  5. Step 5: Solve for x
    x = 2,393.07/41.34
  6. Step 6: Final answer
    x = 57.88

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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.