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Finding the Fourth Proportional to 45.29, 68.27 and 44.59

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Solution

The fourth proportional to 45.29, 68.27 and 44.59 is: 67.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45.29 : 68.27 = 44.59 : x
  2. Step 2: Convert to fraction form
    45.29/68.27 = 44.59/x
  3. Step 3: Cross multiply
    45.29x = 68.27 × 44.59
  4. Step 4: Simplify right side
    45.29x = 3,044.16
  5. Step 5: Solve for x
    x = 3,044.16/45.29
  6. Step 6: Final answer
    x = 67.21

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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.