Home / 68,680.42-103,036.68-21,293.02

Finding the Fourth Proportional to 68,680.42, 103,036.68 and 21,293.02

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Solution

The fourth proportional to 68,680.42, 103,036.68 and 21,293.02 is: 31,944.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,680.42 : 103,036.68 = 21,293.02 : x
  2. Step 2: Convert to fraction form
    68,680.42/103,036.68 = 21,293.02/x
  3. Step 3: Cross multiply
    68,680.42x = 103,036.68 × 21,293.02
  4. Step 4: Simplify right side
    68,680.42x = 2,193,962,087.97
  5. Step 5: Solve for x
    x = 2,193,962,087.97/68,680.42
  6. Step 6: Final answer
    x = 31,944.51

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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.