Home / 80,268.88-120,404.49-38,153.26

Finding the Fourth Proportional to 80,268.88, 120,404.49 and 38,153.26

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Solution

The fourth proportional to 80,268.88, 120,404.49 and 38,153.26 is: 57,230.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,268.88 : 120,404.49 = 38,153.26 : x
  2. Step 2: Convert to fraction form
    80,268.88/120,404.49 = 38,153.26/x
  3. Step 3: Cross multiply
    80,268.88x = 120,404.49 × 38,153.26
  4. Step 4: Simplify right side
    80,268.88x = 4,593,823,812.14
  5. Step 5: Solve for x
    x = 4,593,823,812.14/80,268.88
  6. Step 6: Final answer
    x = 57,230.45

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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.