Home / 326,724.68-490,114.92-90,067.52

Finding the Fourth Proportional to 326,724.68, 490,114.92 and 90,067.52

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Solution

The fourth proportional to 326,724.68, 490,114.92 and 90,067.52 is: 135,108.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,724.68 : 490,114.92 = 90,067.52 : x
  2. Step 2: Convert to fraction form
    326,724.68/490,114.92 = 90,067.52/x
  3. Step 3: Cross multiply
    326,724.68x = 490,114.92 × 90,067.52
  4. Step 4: Simplify right side
    326,724.68x = 44,143,435,359.40
  5. Step 5: Solve for x
    x = 44,143,435,359.40/326,724.68
  6. Step 6: Final answer
    x = 135,108.97

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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.