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Finding the Fourth Proportional to 67.49, 100.73 and 62.08

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Solution

The fourth proportional to 67.49, 100.73 and 62.08 is: 92.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.49 : 100.73 = 62.08 : x
  2. Step 2: Convert to fraction form
    67.49/100.73 = 62.08/x
  3. Step 3: Cross multiply
    67.49x = 100.73 × 62.08
  4. Step 4: Simplify right side
    67.49x = 6,253.32
  5. Step 5: Solve for x
    x = 6,253.32/67.49
  6. Step 6: Final answer
    x = 92.66

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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.