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Finding the Fourth Proportional to 88.97, 122.83 and 57.92

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Solution

The fourth proportional to 88.97, 122.83 and 57.92 is: 79.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.97 : 122.83 = 57.92 : x
  2. Step 2: Convert to fraction form
    88.97/122.83 = 57.92/x
  3. Step 3: Cross multiply
    88.97x = 122.83 × 57.92
  4. Step 4: Simplify right side
    88.97x = 7,113.55
  5. Step 5: Solve for x
    x = 7,113.55/88.97
  6. Step 6: Final answer
    x = 79.96

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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.