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Finding the Fourth Proportional to 67, 99.98 and 60.94

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Solution

The fourth proportional to 67, 99.98 and 60.94 is: 90.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    67 : 99.98 = 60.94 : x
  2. Step 2: Convert to fraction form
    67/99.98 = 60.94/x
  3. Step 3: Cross multiply
    67x = 99.98 × 60.94
  4. Step 4: Simplify right side
    67x = 6,092.63
  5. Step 5: Solve for x
    x = 6,092.63/67
  6. Step 6: Final answer
    x = 90.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.