Home / 68,539.26-102,808.89-18,619.38

Finding the Fourth Proportional to 68,539.26, 102,808.89 and 18,619.38

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Solution

The fourth proportional to 68,539.26, 102,808.89 and 18,619.38 is: 27,929.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,539.26 : 102,808.89 = 18,619.38 : x
  2. Step 2: Convert to fraction form
    68,539.26/102,808.89 = 18,619.38/x
  3. Step 3: Cross multiply
    68,539.26x = 102,808.89 × 18,619.38
  4. Step 4: Simplify right side
    68,539.26x = 1,914,237,790.29
  5. Step 5: Solve for x
    x = 1,914,237,790.29/68,539.26
  6. Step 6: Final answer
    x = 27,929.07

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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.