Home / 84,110.96-126,181.56-28,694

Finding the Fourth Proportional to 84,110.96, 126,181.56 and 28,694

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Solution

The fourth proportional to 84,110.96, 126,181.56 and 28,694 is: 43,046.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,110.96 : 126,181.56 = 28,694 : x
  2. Step 2: Convert to fraction form
    84,110.96/126,181.56 = 28,694/x
  3. Step 3: Cross multiply
    84,110.96x = 126,181.56 × 28,694
  4. Step 4: Simplify right side
    84,110.96x = 3,620,653,682.64
  5. Step 5: Solve for x
    x = 3,620,653,682.64/84,110.96
  6. Step 6: Final answer
    x = 43,046.16

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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.