Home / 80,820.06-121,271.62-35,872.20

Finding the Fourth Proportional to 80,820.06, 121,271.62 and 35,872.20

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Solution

The fourth proportional to 80,820.06, 121,271.62 and 35,872.20 is: 53,826.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,820.06 : 121,271.62 = 35,872.20 : x
  2. Step 2: Convert to fraction form
    80,820.06/121,271.62 = 35,872.20/x
  3. Step 3: Cross multiply
    80,820.06x = 121,271.62 × 35,872.20
  4. Step 4: Simplify right side
    80,820.06x = 4,350,279,806.96
  5. Step 5: Solve for x
    x = 4,350,279,806.96/80,820.06
  6. Step 6: Final answer
    x = 53,826.73

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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.