Home / 76,940.62-106,226.05-49,730.95

Finding the Fourth Proportional to 76,940.62, 106,226.05 and 49,730.95

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Solution

The fourth proportional to 76,940.62, 106,226.05 and 49,730.95 is: 68,659.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,940.62 : 106,226.05 = 49,730.95 : x
  2. Step 2: Convert to fraction form
    76,940.62/106,226.05 = 49,730.95/x
  3. Step 3: Cross multiply
    76,940.62x = 106,226.05 × 49,730.95
  4. Step 4: Simplify right side
    76,940.62x = 5,282,722,381.25
  5. Step 5: Solve for x
    x = 5,282,722,381.25/76,940.62
  6. Step 6: Final answer
    x = 68,659.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.