Home / 43,693.20-65,616.60-42,310.80

Finding the Fourth Proportional to 43,693.20, 65,616.60 and 42,310.80

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Solution

The fourth proportional to 43,693.20, 65,616.60 and 42,310.80 is: 63,540.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,693.20 : 65,616.60 = 42,310.80 : x
  2. Step 2: Convert to fraction form
    43,693.20/65,616.60 = 42,310.80/x
  3. Step 3: Cross multiply
    43,693.20x = 65,616.60 × 42,310.80
  4. Step 4: Simplify right side
    43,693.20x = 2,776,290,839.28
  5. Step 5: Solve for x
    x = 2,776,290,839.28/43,693.20
  6. Step 6: Final answer
    x = 63,540.57

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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.