Home / 75,324.64-113,016.72-28,589.92

Finding the Fourth Proportional to 75,324.64, 113,016.72 and 28,589.92

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Solution

The fourth proportional to 75,324.64, 113,016.72 and 28,589.92 is: 42,896.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,324.64 : 113,016.72 = 28,589.92 : x
  2. Step 2: Convert to fraction form
    75,324.64/113,016.72 = 28,589.92/x
  3. Step 3: Cross multiply
    75,324.64x = 113,016.72 × 28,589.92
  4. Step 4: Simplify right side
    75,324.64x = 3,231,138,983.46
  5. Step 5: Solve for x
    x = 3,231,138,983.46/75,324.64
  6. Step 6: Final answer
    x = 42,896.18

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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.