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Finding the Fourth Proportional to 43.90, 60.59 and 43.18

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Solution

The fourth proportional to 43.90, 60.59 and 43.18 is: 59.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.90 : 60.59 = 43.18 : x
  2. Step 2: Convert to fraction form
    43.90/60.59 = 43.18/x
  3. Step 3: Cross multiply
    43.90x = 60.59 × 43.18
  4. Step 4: Simplify right side
    43.90x = 2,616.23
  5. Step 5: Solve for x
    x = 2,616.23/43.90
  6. Step 6: Final answer
    x = 59.60

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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.