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Finding the Fourth Proportional to 60.74, 82.76 and 59.49

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Solution

The fourth proportional to 60.74, 82.76 and 59.49 is: 81.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.74 : 82.76 = 59.49 : x
  2. Step 2: Convert to fraction form
    60.74/82.76 = 59.49/x
  3. Step 3: Cross multiply
    60.74x = 82.76 × 59.49
  4. Step 4: Simplify right side
    60.74x = 4,923.09
  5. Step 5: Solve for x
    x = 4,923.09/60.74
  6. Step 6: Final answer
    x = 81.05

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.