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Finding the Fourth Proportional to 57.32, 79.11 and 36.62

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Solution

The fourth proportional to 57.32, 79.11 and 36.62 is: 50.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57.32 : 79.11 = 36.62 : x
  2. Step 2: Convert to fraction form
    57.32/79.11 = 36.62/x
  3. Step 3: Cross multiply
    57.32x = 79.11 × 36.62
  4. Step 4: Simplify right side
    57.32x = 2,896.61
  5. Step 5: Solve for x
    x = 2,896.61/57.32
  6. Step 6: Final answer
    x = 50.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.