Home / 43,824.20-65,736.30-31,382.60

Finding the Fourth Proportional to 43,824.20, 65,736.30 and 31,382.60

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Solution

The fourth proportional to 43,824.20, 65,736.30 and 31,382.60 is: 47,073.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,824.20 : 65,736.30 = 31,382.60 : x
  2. Step 2: Convert to fraction form
    43,824.20/65,736.30 = 31,382.60/x
  3. Step 3: Cross multiply
    43,824.20x = 65,736.30 × 31,382.60
  4. Step 4: Simplify right side
    43,824.20x = 2,062,976,008.38
  5. Step 5: Solve for x
    x = 2,062,976,008.38/43,824.20
  6. Step 6: Final answer
    x = 47,073.90

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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.