Home / 80,478.43-120,797.13-60,418.18

Finding the Fourth Proportional to 80,478.43, 120,797.13 and 60,418.18

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Solution

The fourth proportional to 80,478.43, 120,797.13 and 60,418.18 is: 90,686.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,478.43 : 120,797.13 = 60,418.18 : x
  2. Step 2: Convert to fraction form
    80,478.43/120,797.13 = 60,418.18/x
  3. Step 3: Cross multiply
    80,478.43x = 120,797.13 × 60,418.18
  4. Step 4: Simplify right side
    80,478.43x = 7,298,342,743.82
  5. Step 5: Solve for x
    x = 7,298,342,743.82/80,478.43
  6. Step 6: Final answer
    x = 90,686.94

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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.