Home / 85,240.20-127,939.08-43,149.82

Finding the Fourth Proportional to 85,240.20, 127,939.08 and 43,149.82

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Solution

The fourth proportional to 85,240.20, 127,939.08 and 43,149.82 is: 64,764.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,240.20 : 127,939.08 = 43,149.82 : x
  2. Step 2: Convert to fraction form
    85,240.20/127,939.08 = 43,149.82/x
  3. Step 3: Cross multiply
    85,240.20x = 127,939.08 × 43,149.82
  4. Step 4: Simplify right side
    85,240.20x = 5,520,548,272.97
  5. Step 5: Solve for x
    x = 5,520,548,272.97/85,240.20
  6. Step 6: Final answer
    x = 64,764.61

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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.