Home / 68,811.47-103,217.37-18,892.25

Finding the Fourth Proportional to 68,811.47, 103,217.37 and 18,892.25

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Solution

The fourth proportional to 68,811.47, 103,217.37 and 18,892.25 is: 28,338.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,811.47 : 103,217.37 = 18,892.25 : x
  2. Step 2: Convert to fraction form
    68,811.47/103,217.37 = 18,892.25/x
  3. Step 3: Cross multiply
    68,811.47x = 103,217.37 × 18,892.25
  4. Step 4: Simplify right side
    68,811.47x = 1,950,008,616.43
  5. Step 5: Solve for x
    x = 1,950,008,616.43/68,811.47
  6. Step 6: Final answer
    x = 28,338.42

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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.