Home / 324,287.39-486,442.02-87,632.12

Finding the Fourth Proportional to 324,287.39, 486,442.02 and 87,632.12

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Solution

The fourth proportional to 324,287.39, 486,442.02 and 87,632.12 is: 131,451.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,287.39 : 486,442.02 = 87,632.12 : x
  2. Step 2: Convert to fraction form
    324,287.39/486,442.02 = 87,632.12/x
  3. Step 3: Cross multiply
    324,287.39x = 486,442.02 × 87,632.12
  4. Step 4: Simplify right side
    324,287.39x = 42,627,945,469.68
  5. Step 5: Solve for x
    x = 42,627,945,469.68/324,287.39
  6. Step 6: Final answer
    x = 131,451.13

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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.