Home / 75,105.22-103,671.08-43,286.80

Finding the Fourth Proportional to 75,105.22, 103,671.08 and 43,286.80

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Solution

The fourth proportional to 75,105.22, 103,671.08 and 43,286.80 is: 59,750.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,105.22 : 103,671.08 = 43,286.80 : x
  2. Step 2: Convert to fraction form
    75,105.22/103,671.08 = 43,286.80/x
  3. Step 3: Cross multiply
    75,105.22x = 103,671.08 × 43,286.80
  4. Step 4: Simplify right side
    75,105.22x = 4,487,589,305.74
  5. Step 5: Solve for x
    x = 4,487,589,305.74/75,105.22
  6. Step 6: Final answer
    x = 59,750.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.