Home / 80,233.12-120,344.82-21,067.48

Finding the Fourth Proportional to 80,233.12, 120,344.82 and 21,067.48

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Solution

The fourth proportional to 80,233.12, 120,344.82 and 21,067.48 is: 31,599.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,233.12 : 120,344.82 = 21,067.48 : x
  2. Step 2: Convert to fraction form
    80,233.12/120,344.82 = 21,067.48/x
  3. Step 3: Cross multiply
    80,233.12x = 120,344.82 × 21,067.48
  4. Step 4: Simplify right side
    80,233.12x = 2,535,362,088.45
  5. Step 5: Solve for x
    x = 2,535,362,088.45/80,233.12
  6. Step 6: Final answer
    x = 31,599.94

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1.5x scale

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.