Home / 43,825.92-65,742.48-12,661.44

Finding the Fourth Proportional to 43,825.92, 65,742.48 and 12,661.44

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Solution

The fourth proportional to 43,825.92, 65,742.48 and 12,661.44 is: 18,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,825.92 : 65,742.48 = 12,661.44 : x
  2. Step 2: Convert to fraction form
    43,825.92/65,742.48 = 12,661.44/x
  3. Step 3: Cross multiply
    43,825.92x = 65,742.48 × 12,661.44
  4. Step 4: Simplify right side
    43,825.92x = 832,394,465.97
  5. Step 5: Solve for x
    x = 832,394,465.97/43,825.92
  6. Step 6: Final answer
    x = 18,993.20

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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.