Home / 80,020.68-120,045.60-27,435.48

Finding the Fourth Proportional to 80,020.68, 120,045.60 and 27,435.48

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Solution

The fourth proportional to 80,020.68, 120,045.60 and 27,435.48 is: 41,158.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,020.68 : 120,045.60 = 27,435.48 : x
  2. Step 2: Convert to fraction form
    80,020.68/120,045.60 = 27,435.48/x
  3. Step 3: Cross multiply
    80,020.68x = 120,045.60 × 27,435.48
  4. Step 4: Simplify right side
    80,020.68x = 3,293,508,657.89
  5. Step 5: Solve for x
    x = 3,293,508,657.89/80,020.68
  6. Step 6: Final answer
    x = 41,158.22

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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.