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Finding the Fourth Proportional to 41.80, 62.48 and 40.84

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Solution

The fourth proportional to 41.80, 62.48 and 40.84 is: 61.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.80 : 62.48 = 40.84 : x
  2. Step 2: Convert to fraction form
    41.80/62.48 = 40.84/x
  3. Step 3: Cross multiply
    41.80x = 62.48 × 40.84
  4. Step 4: Simplify right side
    41.80x = 2,551.68
  5. Step 5: Solve for x
    x = 2,551.68/41.80
  6. Step 6: Final answer
    x = 61.05

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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.