Home / 49,578.31-68,415.29-28,888.11

Finding the Fourth Proportional to 49,578.31, 68,415.29 and 28,888.11

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Solution

The fourth proportional to 49,578.31, 68,415.29 and 28,888.11 is: 39,863.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,578.31 : 68,415.29 = 28,888.11 : x
  2. Step 2: Convert to fraction form
    49,578.31/68,415.29 = 28,888.11/x
  3. Step 3: Cross multiply
    49,578.31x = 68,415.29 × 28,888.11
  4. Step 4: Simplify right side
    49,578.31x = 1,976,388,387.09
  5. Step 5: Solve for x
    x = 1,976,388,387.09/49,578.31
  6. Step 6: Final answer
    x = 39,863.97

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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.