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Finding the Fourth Proportional to 69.33, 96.33 and 68.63

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Solution

The fourth proportional to 69.33, 96.33 and 68.63 is: 95.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69.33 : 96.33 = 68.63 : x
  2. Step 2: Convert to fraction form
    69.33/96.33 = 68.63/x
  3. Step 3: Cross multiply
    69.33x = 96.33 × 68.63
  4. Step 4: Simplify right side
    69.33x = 6,610.65
  5. Step 5: Solve for x
    x = 6,610.65/69.33
  6. Step 6: Final answer
    x = 95.35

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.