Home / 80,226.40-120,306.48-30,298

Finding the Fourth Proportional to 80,226.40, 120,306.48 and 30,298

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Solution

The fourth proportional to 80,226.40, 120,306.48 and 30,298 is: 45,434.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,226.40 : 120,306.48 = 30,298 : x
  2. Step 2: Convert to fraction form
    80,226.40/120,306.48 = 30,298/x
  3. Step 3: Cross multiply
    80,226.40x = 120,306.48 × 30,298
  4. Step 4: Simplify right side
    80,226.40x = 3,645,045,731.04
  5. Step 5: Solve for x
    x = 3,645,045,731.04/80,226.40
  6. Step 6: Final answer
    x = 45,434.49

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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.