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Finding the Fourth Proportional to 60.92, 83.78 and 52.75

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Solution

The fourth proportional to 60.92, 83.78 and 52.75 is: 72.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.92 : 83.78 = 52.75 : x
  2. Step 2: Convert to fraction form
    60.92/83.78 = 52.75/x
  3. Step 3: Cross multiply
    60.92x = 83.78 × 52.75
  4. Step 4: Simplify right side
    60.92x = 4,418.98
  5. Step 5: Solve for x
    x = 4,418.98/60.92
  6. Step 6: Final answer
    x = 72.54

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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.