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Finding the Fourth Proportional to 113.73, 170.57 and 32.55

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Solution

The fourth proportional to 113.73, 170.57 and 32.55 is: 48.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    113.73 : 170.57 = 32.55 : x
  2. Step 2: Convert to fraction form
    113.73/170.57 = 32.55/x
  3. Step 3: Cross multiply
    113.73x = 170.57 × 32.55
  4. Step 4: Simplify right side
    113.73x = 5,552.05
  5. Step 5: Solve for x
    x = 5,552.05/113.73
  6. Step 6: Final answer
    x = 48.82

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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.