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Finding the Fourth Proportional to 59.54, 82.12 and 38.53

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Solution

The fourth proportional to 59.54, 82.12 and 38.53 is: 53.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.54 : 82.12 = 38.53 : x
  2. Step 2: Convert to fraction form
    59.54/82.12 = 38.53/x
  3. Step 3: Cross multiply
    59.54x = 82.12 × 38.53
  4. Step 4: Simplify right side
    59.54x = 3,164.25
  5. Step 5: Solve for x
    x = 3,164.25/59.54
  6. Step 6: Final answer
    x = 53.15

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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.