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Finding the Fourth Proportional to 41.24, 61.42 and 39.19

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Solution

The fourth proportional to 41.24, 61.42 and 39.19 is: 58.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.24 : 61.42 = 39.19 : x
  2. Step 2: Convert to fraction form
    41.24/61.42 = 39.19/x
  3. Step 3: Cross multiply
    41.24x = 61.42 × 39.19
  4. Step 4: Simplify right side
    41.24x = 2,406.74
  5. Step 5: Solve for x
    x = 2,406.74/41.24
  6. Step 6: Final answer
    x = 58.37

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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.