Home / 80,203.23-120,332.32-30,297.71

Finding the Fourth Proportional to 80,203.23, 120,332.32 and 30,297.71

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Solution

The fourth proportional to 80,203.23, 120,332.32 and 30,297.71 is: 45,456.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,203.23 : 120,332.32 = 30,297.71 : x
  2. Step 2: Convert to fraction form
    80,203.23/120,332.32 = 30,297.71/x
  3. Step 3: Cross multiply
    80,203.23x = 120,332.32 × 30,297.71
  4. Step 4: Simplify right side
    80,203.23x = 3,645,793,960.07
  5. Step 5: Solve for x
    x = 3,645,793,960.07/80,203.23
  6. Step 6: Final answer
    x = 45,456.95

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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.