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Finding the Fourth Proportional to 60.88, 83.79 and 52.11

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Solution

The fourth proportional to 60.88, 83.79 and 52.11 is: 71.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.88 : 83.79 = 52.11 : x
  2. Step 2: Convert to fraction form
    60.88/83.79 = 52.11/x
  3. Step 3: Cross multiply
    60.88x = 83.79 × 52.11
  4. Step 4: Simplify right side
    60.88x = 4,366.30
  5. Step 5: Solve for x
    x = 4,366.30/60.88
  6. Step 6: Final answer
    x = 71.72

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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.