Home / 50,787.38-70,121.22-31,674.62

Finding the Fourth Proportional to 50,787.38, 70,121.22 and 31,674.62

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Solution

The fourth proportional to 50,787.38, 70,121.22 and 31,674.62 is: 43,732.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,787.38 : 70,121.22 = 31,674.62 : x
  2. Step 2: Convert to fraction form
    50,787.38/70,121.22 = 31,674.62/x
  3. Step 3: Cross multiply
    50,787.38x = 70,121.22 × 31,674.62
  4. Step 4: Simplify right side
    50,787.38x = 2,221,062,997.44
  5. Step 5: Solve for x
    x = 2,221,062,997.44/50,787.38
  6. Step 6: Final answer
    x = 43,732.58

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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.