Home / 80,488.28-120,732.32-30,568.28

Finding the Fourth Proportional to 80,488.28, 120,732.32 and 30,568.28

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Solution

The fourth proportional to 80,488.28, 120,732.32 and 30,568.28 is: 45,852.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,488.28 : 120,732.32 = 30,568.28 : x
  2. Step 2: Convert to fraction form
    80,488.28/120,732.32 = 30,568.28/x
  3. Step 3: Cross multiply
    80,488.28x = 120,732.32 × 30,568.28
  4. Step 4: Simplify right side
    80,488.28x = 3,690,579,209.97
  5. Step 5: Solve for x
    x = 3,690,579,209.97/80,488.28
  6. Step 6: Final answer
    x = 45,852.38

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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.