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Finding the Fourth Proportional to 44.03, 66.05 and 30.57

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Solution

The fourth proportional to 44.03, 66.05 and 30.57 is: 45.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.03 : 66.05 = 30.57 : x
  2. Step 2: Convert to fraction form
    44.03/66.05 = 30.57/x
  3. Step 3: Cross multiply
    44.03x = 66.05 × 30.57
  4. Step 4: Simplify right side
    44.03x = 2,019.00
  5. Step 5: Solve for x
    x = 2,019.00/44.03
  6. Step 6: Final answer
    x = 45.86

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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.