Home / 68,724.99-103,091.40-21,344.58

Finding the Fourth Proportional to 68,724.99, 103,091.40 and 21,344.58

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Solution

The fourth proportional to 68,724.99, 103,091.40 and 21,344.58 is: 32,018.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,724.99 : 103,091.40 = 21,344.58 : x
  2. Step 2: Convert to fraction form
    68,724.99/103,091.40 = 21,344.58/x
  3. Step 3: Cross multiply
    68,724.99x = 103,091.40 × 21,344.58
  4. Step 4: Simplify right side
    68,724.99x = 2,200,442,634.61
  5. Step 5: Solve for x
    x = 2,200,442,634.61/68,724.99
  6. Step 6: Final answer
    x = 32,018.09

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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.