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Finding the Fourth Proportional to 44.09, 60.81 and 29.31

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Solution

The fourth proportional to 44.09, 60.81 and 29.31 is: 40.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.09 : 60.81 = 29.31 : x
  2. Step 2: Convert to fraction form
    44.09/60.81 = 29.31/x
  3. Step 3: Cross multiply
    44.09x = 60.81 × 29.31
  4. Step 4: Simplify right side
    44.09x = 1,782.34
  5. Step 5: Solve for x
    x = 1,782.34/44.09
  6. Step 6: Final answer
    x = 40.43

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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.