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Finding the Fourth Proportional to 67.26, 100.95 and 65.02

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Solution

The fourth proportional to 67.26, 100.95 and 65.02 is: 97.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.26 : 100.95 = 65.02 : x
  2. Step 2: Convert to fraction form
    67.26/100.95 = 65.02/x
  3. Step 3: Cross multiply
    67.26x = 100.95 × 65.02
  4. Step 4: Simplify right side
    67.26x = 6,563.77
  5. Step 5: Solve for x
    x = 6,563.77/67.26
  6. Step 6: Final answer
    x = 97.59

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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.