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Finding the Fourth Proportional to 60.53, 83.36 and 48.85

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Solution

The fourth proportional to 60.53, 83.36 and 48.85 is: 67.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.53 : 83.36 = 48.85 : x
  2. Step 2: Convert to fraction form
    60.53/83.36 = 48.85/x
  3. Step 3: Cross multiply
    60.53x = 83.36 × 48.85
  4. Step 4: Simplify right side
    60.53x = 4,072.05
  5. Step 5: Solve for x
    x = 4,072.05/60.53
  6. Step 6: Final answer
    x = 67.28

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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.