Home / 68,724.26-103,102.52-21,336.90

Finding the Fourth Proportional to 68,724.26, 103,102.52 and 21,336.90

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Solution

The fourth proportional to 68,724.26, 103,102.52 and 21,336.90 is: 32,010.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,724.26 : 103,102.52 = 21,336.90 : x
  2. Step 2: Convert to fraction form
    68,724.26/103,102.52 = 21,336.90/x
  3. Step 3: Cross multiply
    68,724.26x = 103,102.52 × 21,336.90
  4. Step 4: Simplify right side
    68,724.26x = 2,199,888,212.33
  5. Step 5: Solve for x
    x = 2,199,888,212.33/68,724.26
  6. Step 6: Final answer
    x = 32,010.36

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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.