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Finding the Fourth Proportional to 41.64, 62.58 and 33.72

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Solution

The fourth proportional to 41.64, 62.58 and 33.72 is: 50.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.64 : 62.58 = 33.72 : x
  2. Step 2: Convert to fraction form
    41.64/62.58 = 33.72/x
  3. Step 3: Cross multiply
    41.64x = 62.58 × 33.72
  4. Step 4: Simplify right side
    41.64x = 2,110.20
  5. Step 5: Solve for x
    x = 2,110.20/41.64
  6. Step 6: Final answer
    x = 50.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.