Home / 80,534.16-120,823.14-27,947.75

Finding the Fourth Proportional to 80,534.16, 120,823.14 and 27,947.75

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Solution

The fourth proportional to 80,534.16, 120,823.14 and 27,947.75 is: 41,929.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,534.16 : 120,823.14 = 27,947.75 : x
  2. Step 2: Convert to fraction form
    80,534.16/120,823.14 = 27,947.75/x
  3. Step 3: Cross multiply
    80,534.16x = 120,823.14 × 27,947.75
  4. Step 4: Simplify right side
    80,534.16x = 3,376,734,306.82
  5. Step 5: Solve for x
    x = 3,376,734,306.82/80,534.16
  6. Step 6: Final answer
    x = 41,929.22

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1.5x scale

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.