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Finding the Fourth Proportional to 41.96, 62.70 and 34.26

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Solution

The fourth proportional to 41.96, 62.70 and 34.26 is: 51.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.96 : 62.70 = 34.26 : x
  2. Step 2: Convert to fraction form
    41.96/62.70 = 34.26/x
  3. Step 3: Cross multiply
    41.96x = 62.70 × 34.26
  4. Step 4: Simplify right side
    41.96x = 2,148.10
  5. Step 5: Solve for x
    x = 2,148.10/41.96
  6. Step 6: Final answer
    x = 51.20

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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.