Home / 75,932.64-113,908.07-31,589.39

Finding the Fourth Proportional to 75,932.64, 113,908.07 and 31,589.39

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Solution

The fourth proportional to 75,932.64, 113,908.07 and 31,589.39 is: 47,387.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,932.64 : 113,908.07 = 31,589.39 : x
  2. Step 2: Convert to fraction form
    75,932.64/113,908.07 = 31,589.39/x
  3. Step 3: Cross multiply
    75,932.64x = 113,908.07 × 31,589.39
  4. Step 4: Simplify right side
    75,932.64x = 3,598,286,811.12
  5. Step 5: Solve for x
    x = 3,598,286,811.12/75,932.64
  6. Step 6: Final answer
    x = 47,387.88

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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.