Home / 90,020.08-135,028.38-26,882.98

Finding the Fourth Proportional to 90,020.08, 135,028.38 and 26,882.98

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Solution

The fourth proportional to 90,020.08, 135,028.38 and 26,882.98 is: 40,323.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,020.08 : 135,028.38 = 26,882.98 : x
  2. Step 2: Convert to fraction form
    90,020.08/135,028.38 = 26,882.98/x
  3. Step 3: Cross multiply
    90,020.08x = 135,028.38 × 26,882.98
  4. Step 4: Simplify right side
    90,020.08x = 3,629,965,238.97
  5. Step 5: Solve for x
    x = 3,629,965,238.97/90,020.08
  6. Step 6: Final answer
    x = 40,323.95

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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.