Home / 68,828.21-103,229.99-18,227.58

Finding the Fourth Proportional to 68,828.21, 103,229.99 and 18,227.58

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Solution

The fourth proportional to 68,828.21, 103,229.99 and 18,227.58 is: 27,338.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,828.21 : 103,229.99 = 18,227.58 : x
  2. Step 2: Convert to fraction form
    68,828.21/103,229.99 = 18,227.58/x
  3. Step 3: Cross multiply
    68,828.21x = 103,229.99 × 18,227.58
  4. Step 4: Simplify right side
    68,828.21x = 1,881,632,901.12
  5. Step 5: Solve for x
    x = 1,881,632,901.12/68,828.21
  6. Step 6: Final answer
    x = 27,338.11

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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.