Home / 76,949.68-115,431.10-27,025.43

Finding the Fourth Proportional to 76,949.68, 115,431.10 and 27,025.43

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Solution

The fourth proportional to 76,949.68, 115,431.10 and 27,025.43 is: 40,540.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,949.68 : 115,431.10 = 27,025.43 : x
  2. Step 2: Convert to fraction form
    76,949.68/115,431.10 = 27,025.43/x
  3. Step 3: Cross multiply
    76,949.68x = 115,431.10 × 27,025.43
  4. Step 4: Simplify right side
    76,949.68x = 3,119,575,112.87
  5. Step 5: Solve for x
    x = 3,119,575,112.87/76,949.68
  6. Step 6: Final answer
    x = 40,540.46

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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.