Home / 80,672.14-111,305.05-48,386.55

Finding the Fourth Proportional to 80,672.14, 111,305.05 and 48,386.55

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Solution

The fourth proportional to 80,672.14, 111,305.05 and 48,386.55 is: 66,759.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,672.14 : 111,305.05 = 48,386.55 : x
  2. Step 2: Convert to fraction form
    80,672.14/111,305.05 = 48,386.55/x
  3. Step 3: Cross multiply
    80,672.14x = 111,305.05 × 48,386.55
  4. Step 4: Simplify right side
    80,672.14x = 5,385,667,367.08
  5. Step 5: Solve for x
    x = 5,385,667,367.08/80,672.14
  6. Step 6: Final answer
    x = 66,759.94

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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.