Home / 76,093.20-113,589.90-66,762

Finding the Fourth Proportional to 76,093.20, 113,589.90 and 66,762

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Solution

The fourth proportional to 76,093.20, 113,589.90 and 66,762 is: 99,660.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,093.20 : 113,589.90 = 66,762 : x
  2. Step 2: Convert to fraction form
    76,093.20/113,589.90 = 66,762/x
  3. Step 3: Cross multiply
    76,093.20x = 113,589.90 × 66,762
  4. Step 4: Simplify right side
    76,093.20x = 7,583,488,903.80
  5. Step 5: Solve for x
    x = 7,583,488,903.80/76,093.20
  6. Step 6: Final answer
    x = 99,660.53

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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.