Home / 67,067.63-100,616.99-19,680.78

Finding the Fourth Proportional to 67,067.63, 100,616.99 and 19,680.78

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Solution

The fourth proportional to 67,067.63, 100,616.99 and 19,680.78 is: 29,525.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,067.63 : 100,616.99 = 19,680.78 : x
  2. Step 2: Convert to fraction form
    67,067.63/100,616.99 = 19,680.78/x
  3. Step 3: Cross multiply
    67,067.63x = 100,616.99 × 19,680.78
  4. Step 4: Simplify right side
    67,067.63x = 1,980,220,746.05
  5. Step 5: Solve for x
    x = 1,980,220,746.05/67,067.63
  6. Step 6: Final answer
    x = 29,525.73

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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.