Home / 80,240.31-120,350.75-40,825.71

Finding the Fourth Proportional to 80,240.31, 120,350.75 and 40,825.71

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Solution

The fourth proportional to 80,240.31, 120,350.75 and 40,825.71 is: 61,233.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,240.31 : 120,350.75 = 40,825.71 : x
  2. Step 2: Convert to fraction form
    80,240.31/120,350.75 = 40,825.71/x
  3. Step 3: Cross multiply
    80,240.31x = 120,350.75 × 40,825.71
  4. Step 4: Simplify right side
    80,240.31x = 4,913,404,613.65
  5. Step 5: Solve for x
    x = 4,913,404,613.65/80,240.31
  6. Step 6: Final answer
    x = 61,233.62

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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.