Home / 324,384.11-486,539.22-87,708.33

Finding the Fourth Proportional to 324,384.11, 486,539.22 and 87,708.33

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Solution

The fourth proportional to 324,384.11, 486,539.22 and 87,708.33 is: 131,552.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,384.11 : 486,539.22 = 87,708.33 : x
  2. Step 2: Convert to fraction form
    324,384.11/486,539.22 = 87,708.33/x
  3. Step 3: Cross multiply
    324,384.11x = 486,539.22 × 87,708.33
  4. Step 4: Simplify right side
    324,384.11x = 42,673,542,794.61
  5. Step 5: Solve for x
    x = 42,673,542,794.61/324,384.11
  6. Step 6: Final answer
    x = 131,552.51

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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.