Home / 90,378.53-135,567.11-27,198.38

Finding the Fourth Proportional to 90,378.53, 135,567.11 and 27,198.38

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Solution

The fourth proportional to 90,378.53, 135,567.11 and 27,198.38 is: 40,797.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,378.53 : 135,567.11 = 27,198.38 : x
  2. Step 2: Convert to fraction form
    90,378.53/135,567.11 = 27,198.38/x
  3. Step 3: Cross multiply
    90,378.53x = 135,567.11 × 27,198.38
  4. Step 4: Simplify right side
    90,378.53x = 3,687,204,959.45
  5. Step 5: Solve for x
    x = 3,687,204,959.45/90,378.53
  6. Step 6: Final answer
    x = 40,797.36

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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.