Home / 80,113.76-120,145.44-27,510.68

Finding the Fourth Proportional to 80,113.76, 120,145.44 and 27,510.68

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Solution

The fourth proportional to 80,113.76, 120,145.44 and 27,510.68 is: 41,257.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,113.76 : 120,145.44 = 27,510.68 : x
  2. Step 2: Convert to fraction form
    80,113.76/120,145.44 = 27,510.68/x
  3. Step 3: Cross multiply
    80,113.76x = 120,145.44 × 27,510.68
  4. Step 4: Simplify right side
    80,113.76x = 3,305,282,753.30
  5. Step 5: Solve for x
    x = 3,305,282,753.30/80,113.76
  6. Step 6: Final answer
    x = 41,257.37

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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.