Home / 80,863.74-121,289.85-30,253.14

Finding the Fourth Proportional to 80,863.74, 121,289.85 and 30,253.14

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Solution

The fourth proportional to 80,863.74, 121,289.85 and 30,253.14 is: 45,377.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,863.74 : 121,289.85 = 30,253.14 : x
  2. Step 2: Convert to fraction form
    80,863.74/121,289.85 = 30,253.14/x
  3. Step 3: Cross multiply
    80,863.74x = 121,289.85 × 30,253.14
  4. Step 4: Simplify right side
    80,863.74x = 3,669,398,812.63
  5. Step 5: Solve for x
    x = 3,669,398,812.63/80,863.74
  6. Step 6: Final answer
    x = 45,377.56

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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.