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Finding the Fourth Proportional to 59.98, 82.57 and 52.70

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Solution

The fourth proportional to 59.98, 82.57 and 52.70 is: 72.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.98 : 82.57 = 52.70 : x
  2. Step 2: Convert to fraction form
    59.98/82.57 = 52.70/x
  3. Step 3: Cross multiply
    59.98x = 82.57 × 52.70
  4. Step 4: Simplify right side
    59.98x = 4,351.44
  5. Step 5: Solve for x
    x = 4,351.44/59.98
  6. Step 6: Final answer
    x = 72.55

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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.