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Finding the Fourth Proportional to 48.25, 66.51 and 41.31

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Solution

The fourth proportional to 48.25, 66.51 and 41.31 is: 56.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    48.25 : 66.51 = 41.31 : x
  2. Step 2: Convert to fraction form
    48.25/66.51 = 41.31/x
  3. Step 3: Cross multiply
    48.25x = 66.51 × 41.31
  4. Step 4: Simplify right side
    48.25x = 2,747.20
  5. Step 5: Solve for x
    x = 2,747.20/48.25
  6. Step 6: Final answer
    x = 56.94

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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.