Home / 75,578.49-113,387.21-54,255.92

Finding the Fourth Proportional to 75,578.49, 113,387.21 and 54,255.92

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Solution

The fourth proportional to 75,578.49, 113,387.21 and 54,255.92 is: 81,397.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,578.49 : 113,387.21 = 54,255.92 : x
  2. Step 2: Convert to fraction form
    75,578.49/113,387.21 = 54,255.92/x
  3. Step 3: Cross multiply
    75,578.49x = 113,387.21 × 54,255.92
  4. Step 4: Simplify right side
    75,578.49x = 6,151,927,869.33
  5. Step 5: Solve for x
    x = 6,151,927,869.33/75,578.49
  6. Step 6: Final answer
    x = 81,397.87

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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.