Home / 67,121.91-92,620.80-40,265.55

Finding the Fourth Proportional to 67,121.91, 92,620.80 and 40,265.55

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Solution

The fourth proportional to 67,121.91, 92,620.80 and 40,265.55 is: 55,562.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,121.91 : 92,620.80 = 40,265.55 : x
  2. Step 2: Convert to fraction form
    67,121.91/92,620.80 = 40,265.55/x
  3. Step 3: Cross multiply
    67,121.91x = 92,620.80 × 40,265.55
  4. Step 4: Simplify right side
    67,121.91x = 3,729,427,453.44
  5. Step 5: Solve for x
    x = 3,729,427,453.44/67,121.91
  6. Step 6: Final answer
    x = 55,562.00

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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.