Home / 80,690.31-111,351.03-44,879.55

Finding the Fourth Proportional to 80,690.31, 111,351.03 and 44,879.55

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Solution

The fourth proportional to 80,690.31, 111,351.03 and 44,879.55 is: 61,932.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,690.31 : 111,351.03 = 44,879.55 : x
  2. Step 2: Convert to fraction form
    80,690.31/111,351.03 = 44,879.55/x
  3. Step 3: Cross multiply
    80,690.31x = 111,351.03 × 44,879.55
  4. Step 4: Simplify right side
    80,690.31x = 4,997,384,118.44
  5. Step 5: Solve for x
    x = 4,997,384,118.44/80,690.31
  6. Step 6: Final answer
    x = 61,932.89

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1.5x scale

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.