Home / 75,881.97-113,835.30-28,500.75

Finding the Fourth Proportional to 75,881.97, 113,835.30 and 28,500.75

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Solution

The fourth proportional to 75,881.97, 113,835.30 and 28,500.75 is: 42,755.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,881.97 : 113,835.30 = 28,500.75 : x
  2. Step 2: Convert to fraction form
    75,881.97/113,835.30 = 28,500.75/x
  3. Step 3: Cross multiply
    75,881.97x = 113,835.30 × 28,500.75
  4. Step 4: Simplify right side
    75,881.97x = 3,244,390,857.30
  5. Step 5: Solve for x
    x = 3,244,390,857.30/75,881.97
  6. Step 6: Final answer
    x = 42,755.76

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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.