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Finding the Fourth Proportional to 60.08, 81.74 and 59.74

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Solution

The fourth proportional to 60.08, 81.74 and 59.74 is: 81.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.08 : 81.74 = 59.74 : x
  2. Step 2: Convert to fraction form
    60.08/81.74 = 59.74/x
  3. Step 3: Cross multiply
    60.08x = 81.74 × 59.74
  4. Step 4: Simplify right side
    60.08x = 4,883.09
  5. Step 5: Solve for x
    x = 4,883.09/60.08
  6. Step 6: Final answer
    x = 81.28

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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.