Home / 49,940.82-68,920.38-28,720.08

Finding the Fourth Proportional to 49,940.82, 68,920.38 and 28,720.08

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Solution

The fourth proportional to 49,940.82, 68,920.38 and 28,720.08 is: 39,634.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,940.82 : 68,920.38 = 28,720.08 : x
  2. Step 2: Convert to fraction form
    49,940.82/68,920.38 = 28,720.08/x
  3. Step 3: Cross multiply
    49,940.82x = 68,920.38 × 28,720.08
  4. Step 4: Simplify right side
    49,940.82x = 1,979,398,827.23
  5. Step 5: Solve for x
    x = 1,979,398,827.23/49,940.82
  6. Step 6: Final answer
    x = 39,634.89

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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.