Home / 75,877.32-113,786.82-52,432.68

Finding the Fourth Proportional to 75,877.32, 113,786.82 and 52,432.68

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Solution

The fourth proportional to 75,877.32, 113,786.82 and 52,432.68 is: 78,628.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,877.32 : 113,786.82 = 52,432.68 : x
  2. Step 2: Convert to fraction form
    75,877.32/113,786.82 = 52,432.68/x
  3. Step 3: Cross multiply
    75,877.32x = 113,786.82 × 52,432.68
  4. Step 4: Simplify right side
    75,877.32x = 5,966,147,921.28
  5. Step 5: Solve for x
    x = 5,966,147,921.28/75,877.32
  6. Step 6: Final answer
    x = 78,628.87

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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.