Home / 75,757.20-112,741.33-73,234.40

Finding the Fourth Proportional to 75,757.20, 112,741.33 and 73,234.40

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Solution

The fourth proportional to 75,757.20, 112,741.33 and 73,234.40 is: 108,986.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,757.20 : 112,741.33 = 73,234.40 : x
  2. Step 2: Convert to fraction form
    75,757.20/112,741.33 = 73,234.40/x
  3. Step 3: Cross multiply
    75,757.20x = 112,741.33 × 73,234.40
  4. Step 4: Simplify right side
    75,757.20x = 8,256,543,657.75
  5. Step 5: Solve for x
    x = 8,256,543,657.75/75,757.20
  6. Step 6: Final answer
    x = 108,986.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.