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Finding the Fourth Proportional to 48.81, 73.48 and 44.56

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Solution

The fourth proportional to 48.81, 73.48 and 44.56 is: 67.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    48.81 : 73.48 = 44.56 : x
  2. Step 2: Convert to fraction form
    48.81/73.48 = 44.56/x
  3. Step 3: Cross multiply
    48.81x = 73.48 × 44.56
  4. Step 4: Simplify right side
    48.81x = 3,273.90
  5. Step 5: Solve for x
    x = 3,273.90/48.81
  6. Step 6: Final answer
    x = 67.08

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.