Home / 67,040.43-92,512.78-40,197.75

Finding the Fourth Proportional to 67,040.43, 92,512.78 and 40,197.75

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Solution

The fourth proportional to 67,040.43, 92,512.78 and 40,197.75 is: 55,471.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,040.43 : 92,512.78 = 40,197.75 : x
  2. Step 2: Convert to fraction form
    67,040.43/92,512.78 = 40,197.75/x
  3. Step 3: Cross multiply
    67,040.43x = 92,512.78 × 40,197.75
  4. Step 4: Simplify right side
    67,040.43x = 3,718,805,602.25
  5. Step 5: Solve for x
    x = 3,718,805,602.25/67,040.43
  6. Step 6: Final answer
    x = 55,471.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.