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Finding the Fourth Proportional to 67.17, 100.62 and 60.02

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Solution

The fourth proportional to 67.17, 100.62 and 60.02 is: 89.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.17 : 100.62 = 60.02 : x
  2. Step 2: Convert to fraction form
    67.17/100.62 = 60.02/x
  3. Step 3: Cross multiply
    67.17x = 100.62 × 60.02
  4. Step 4: Simplify right side
    67.17x = 6,039.31
  5. Step 5: Solve for x
    x = 6,039.31/67.17
  6. Step 6: Final answer
    x = 89.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.