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Finding the Fourth Proportional to 67.08, 100.10 and 60.24

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Solution

The fourth proportional to 67.08, 100.10 and 60.24 is: 89.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.08 : 100.10 = 60.24 : x
  2. Step 2: Convert to fraction form
    67.08/100.10 = 60.24/x
  3. Step 3: Cross multiply
    67.08x = 100.10 × 60.24
  4. Step 4: Simplify right side
    67.08x = 6,029.72
  5. Step 5: Solve for x
    x = 6,029.72/67.08
  6. Step 6: Final answer
    x = 89.89

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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.