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Finding the Fourth Proportional to 44.09, 66.08 and 15.57

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Solution

The fourth proportional to 44.09, 66.08 and 15.57 is: 23.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.09 : 66.08 = 15.57 : x
  2. Step 2: Convert to fraction form
    44.09/66.08 = 15.57/x
  3. Step 3: Cross multiply
    44.09x = 66.08 × 15.57
  4. Step 4: Simplify right side
    44.09x = 1,028.54
  5. Step 5: Solve for x
    x = 1,028.54/44.09
  6. Step 6: Final answer
    x = 23.33

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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.