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Finding the Fourth Proportional to 60.96, 84.48 and 60.18

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Solution

The fourth proportional to 60.96, 84.48 and 60.18 is: 83.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.96 : 84.48 = 60.18 : x
  2. Step 2: Convert to fraction form
    60.96/84.48 = 60.18/x
  3. Step 3: Cross multiply
    60.96x = 84.48 × 60.18
  4. Step 4: Simplify right side
    60.96x = 5,084.01
  5. Step 5: Solve for x
    x = 5,084.01/60.96
  6. Step 6: Final answer
    x = 83.40

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.