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Finding the Fourth Proportional to 45.10, 67.54 and 44.48

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Solution

The fourth proportional to 45.10, 67.54 and 44.48 is: 66.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45.10 : 67.54 = 44.48 : x
  2. Step 2: Convert to fraction form
    45.10/67.54 = 44.48/x
  3. Step 3: Cross multiply
    45.10x = 67.54 × 44.48
  4. Step 4: Simplify right side
    45.10x = 3,004.18
  5. Step 5: Solve for x
    x = 3,004.18/45.10
  6. Step 6: Final answer
    x = 66.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.