Home / 80,253.06-120,308-38,107.14

Finding the Fourth Proportional to 80,253.06, 120,308 and 38,107.14

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Solution

The fourth proportional to 80,253.06, 120,308 and 38,107.14 is: 57,126.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,253.06 : 120,308 = 38,107.14 : x
  2. Step 2: Convert to fraction form
    80,253.06/120,308 = 38,107.14/x
  3. Step 3: Cross multiply
    80,253.06x = 120,308 × 38,107.14
  4. Step 4: Simplify right side
    80,253.06x = 4,584,593,799.12
  5. Step 5: Solve for x
    x = 4,584,593,799.12/80,253.06
  6. Step 6: Final answer
    x = 57,126.72

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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.