Home / 43,839.18-65,768.49-12,672.06

Finding the Fourth Proportional to 43,839.18, 65,768.49 and 12,672.06

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Solution

The fourth proportional to 43,839.18, 65,768.49 and 12,672.06 is: 19,010.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,839.18 : 65,768.49 = 12,672.06 : x
  2. Step 2: Convert to fraction form
    43,839.18/65,768.49 = 12,672.06/x
  3. Step 3: Cross multiply
    43,839.18x = 65,768.49 × 12,672.06
  4. Step 4: Simplify right side
    43,839.18x = 833,422,251.39
  5. Step 5: Solve for x
    x = 833,422,251.39/43,839.18
  6. Step 6: Final answer
    x = 19,010.90

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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.