Home / 68,786.44-94,922.58-38,978.44

Finding the Fourth Proportional to 68,786.44, 94,922.58 and 38,978.44

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Solution

The fourth proportional to 68,786.44, 94,922.58 and 38,978.44 is: 53,788.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,786.44 : 94,922.58 = 38,978.44 : x
  2. Step 2: Convert to fraction form
    68,786.44/94,922.58 = 38,978.44/x
  3. Step 3: Cross multiply
    68,786.44x = 94,922.58 × 38,978.44
  4. Step 4: Simplify right side
    68,786.44x = 3,699,934,089.18
  5. Step 5: Solve for x
    x = 3,699,934,089.18/68,786.44
  6. Step 6: Final answer
    x = 53,788.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.