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Finding the Fourth Proportional to 69.98, 96.67 and 59.73

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Solution

The fourth proportional to 69.98, 96.67 and 59.73 is: 82.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69.98 : 96.67 = 59.73 : x
  2. Step 2: Convert to fraction form
    69.98/96.67 = 59.73/x
  3. Step 3: Cross multiply
    69.98x = 96.67 × 59.73
  4. Step 4: Simplify right side
    69.98x = 5,774.10
  5. Step 5: Solve for x
    x = 5,774.10/69.98
  6. Step 6: Final answer
    x = 82.51

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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.