Home / 82,311.98-113,584.65-48,321.86

Finding the Fourth Proportional to 82,311.98, 113,584.65 and 48,321.86

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Solution

The fourth proportional to 82,311.98, 113,584.65 and 48,321.86 is: 66,680.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,311.98 : 113,584.65 = 48,321.86 : x
  2. Step 2: Convert to fraction form
    82,311.98/113,584.65 = 48,321.86/x
  3. Step 3: Cross multiply
    82,311.98x = 113,584.65 × 48,321.86
  4. Step 4: Simplify right side
    82,311.98x = 5,488,621,555.45
  5. Step 5: Solve for x
    x = 5,488,621,555.45/82,311.98
  6. Step 6: Final answer
    x = 66,680.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.