Home / 54,198.32-81,192.27-39,940.90

Finding the Fourth Proportional to 54,198.32, 81,192.27 and 39,940.90

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Solution

The fourth proportional to 54,198.32, 81,192.27 and 39,940.90 is: 59,833.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,198.32 : 81,192.27 = 39,940.90 : x
  2. Step 2: Convert to fraction form
    54,198.32/81,192.27 = 39,940.90/x
  3. Step 3: Cross multiply
    54,198.32x = 81,192.27 × 39,940.90
  4. Step 4: Simplify right side
    54,198.32x = 3,242,892,336.84
  5. Step 5: Solve for x
    x = 3,242,892,336.84/54,198.32
  6. Step 6: Final answer
    x = 59,833.82

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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.