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Finding the Fourth Proportional to 88.01, 121.51 and 67.33

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Solution

The fourth proportional to 88.01, 121.51 and 67.33 is: 92.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.01 : 121.51 = 67.33 : x
  2. Step 2: Convert to fraction form
    88.01/121.51 = 67.33/x
  3. Step 3: Cross multiply
    88.01x = 121.51 × 67.33
  4. Step 4: Simplify right side
    88.01x = 8,181.27
  5. Step 5: Solve for x
    x = 8,181.27/88.01
  6. Step 6: Final answer
    x = 92.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.