Home / 68,067.36-102,115.62-28,601.73

Finding the Fourth Proportional to 68,067.36, 102,115.62 and 28,601.73

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Solution

The fourth proportional to 68,067.36, 102,115.62 and 28,601.73 is: 42,908.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,067.36 : 102,115.62 = 28,601.73 : x
  2. Step 2: Convert to fraction form
    68,067.36/102,115.62 = 28,601.73/x
  3. Step 3: Cross multiply
    68,067.36x = 102,115.62 × 28,601.73
  4. Step 4: Simplify right side
    68,067.36x = 2,920,683,392.02
  5. Step 5: Solve for x
    x = 2,920,683,392.02/68,067.36
  6. Step 6: Final answer
    x = 42,908.72

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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.