Home / 67,067.74-100,598.56-19,680.92

Finding the Fourth Proportional to 67,067.74, 100,598.56 and 19,680.92

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Solution

The fourth proportional to 67,067.74, 100,598.56 and 19,680.92 is: 29,520.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,067.74 : 100,598.56 = 19,680.92 : x
  2. Step 2: Convert to fraction form
    67,067.74/100,598.56 = 19,680.92/x
  3. Step 3: Cross multiply
    67,067.74x = 100,598.56 × 19,680.92
  4. Step 4: Simplify right side
    67,067.74x = 1,979,872,211.48
  5. Step 5: Solve for x
    x = 1,979,872,211.48/67,067.74
  6. Step 6: Final answer
    x = 29,520.48

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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.