Home / 68,774.42-103,176.47-21,388.57

Finding the Fourth Proportional to 68,774.42, 103,176.47 and 21,388.57

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Solution

The fourth proportional to 68,774.42, 103,176.47 and 21,388.57 is: 32,087.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,774.42 : 103,176.47 = 21,388.57 : x
  2. Step 2: Convert to fraction form
    68,774.42/103,176.47 = 21,388.57/x
  3. Step 3: Cross multiply
    68,774.42x = 103,176.47 × 21,388.57
  4. Step 4: Simplify right side
    68,774.42x = 2,206,797,406.54
  5. Step 5: Solve for x
    x = 2,206,797,406.54/68,774.42
  6. Step 6: Final answer
    x = 32,087.48

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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.