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Finding the Fourth Proportional to 44.20, 60.57 and 42.99

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Solution

The fourth proportional to 44.20, 60.57 and 42.99 is: 58.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.20 : 60.57 = 42.99 : x
  2. Step 2: Convert to fraction form
    44.20/60.57 = 42.99/x
  3. Step 3: Cross multiply
    44.20x = 60.57 × 42.99
  4. Step 4: Simplify right side
    44.20x = 2,603.90
  5. Step 5: Solve for x
    x = 2,603.90/44.20
  6. Step 6: Final answer
    x = 58.91

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.