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Finding the Fourth Proportional to 49.18, 68.02 and 41.54

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Solution

The fourth proportional to 49.18, 68.02 and 41.54 is: 57.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.18 : 68.02 = 41.54 : x
  2. Step 2: Convert to fraction form
    49.18/68.02 = 41.54/x
  3. Step 3: Cross multiply
    49.18x = 68.02 × 41.54
  4. Step 4: Simplify right side
    49.18x = 2,825.55
  5. Step 5: Solve for x
    x = 2,825.55/49.18
  6. Step 6: Final answer
    x = 57.45

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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.