Home / 43,761.35-65,641.61-18,785.21

Finding the Fourth Proportional to 43,761.35, 65,641.61 and 18,785.21

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Solution

The fourth proportional to 43,761.35, 65,641.61 and 18,785.21 is: 28,177.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,761.35 : 65,641.61 = 18,785.21 : x
  2. Step 2: Convert to fraction form
    43,761.35/65,641.61 = 18,785.21/x
  3. Step 3: Cross multiply
    43,761.35x = 65,641.61 × 18,785.21
  4. Step 4: Simplify right side
    43,761.35x = 1,233,091,006.45
  5. Step 5: Solve for x
    x = 1,233,091,006.45/43,761.35
  6. Step 6: Final answer
    x = 28,177.63

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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.