Home / 80,785.93-121,234.24-28,195.41

Finding the Fourth Proportional to 80,785.93, 121,234.24 and 28,195.41

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Solution

The fourth proportional to 80,785.93, 121,234.24 and 28,195.41 is: 42,312.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,785.93 : 121,234.24 = 28,195.41 : x
  2. Step 2: Convert to fraction form
    80,785.93/121,234.24 = 28,195.41/x
  3. Step 3: Cross multiply
    80,785.93x = 121,234.24 × 28,195.41
  4. Step 4: Simplify right side
    80,785.93x = 3,418,249,173.33
  5. Step 5: Solve for x
    x = 3,418,249,173.33/80,785.93
  6. Step 6: Final answer
    x = 42,312.43

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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.