Home / 67,268.85-100,771.92-40,908.21

Finding the Fourth Proportional to 67,268.85, 100,771.92 and 40,908.21

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Solution

The fourth proportional to 67,268.85, 100,771.92 and 40,908.21 is: 61,282.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,268.85 : 100,771.92 = 40,908.21 : x
  2. Step 2: Convert to fraction form
    67,268.85/100,771.92 = 40,908.21/x
  3. Step 3: Cross multiply
    67,268.85x = 100,771.92 × 40,908.21
  4. Step 4: Simplify right side
    67,268.85x = 4,122,398,865.46
  5. Step 5: Solve for x
    x = 4,122,398,865.46/67,268.85
  6. Step 6: Final answer
    x = 61,282.43

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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.