Home / 75,832.45-113,818.49-38,418.55

Finding the Fourth Proportional to 75,832.45, 113,818.49 and 38,418.55

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Solution

The fourth proportional to 75,832.45, 113,818.49 and 38,418.55 is: 57,663.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,832.45 : 113,818.49 = 38,418.55 : x
  2. Step 2: Convert to fraction form
    75,832.45/113,818.49 = 38,418.55/x
  3. Step 3: Cross multiply
    75,832.45x = 113,818.49 × 38,418.55
  4. Step 4: Simplify right side
    75,832.45x = 4,372,741,348.99
  5. Step 5: Solve for x
    x = 4,372,741,348.99/75,832.45
  6. Step 6: Final answer
    x = 57,663.19

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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.