Home / 84,660.22-126,945.21-28,481.66

Finding the Fourth Proportional to 84,660.22, 126,945.21 and 28,481.66

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Solution

The fourth proportional to 84,660.22, 126,945.21 and 28,481.66 is: 42,707.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,660.22 : 126,945.21 = 28,481.66 : x
  2. Step 2: Convert to fraction form
    84,660.22/126,945.21 = 28,481.66/x
  3. Step 3: Cross multiply
    84,660.22x = 126,945.21 × 28,481.66
  4. Step 4: Simplify right side
    84,660.22x = 3,615,610,257.97
  5. Step 5: Solve for x
    x = 3,615,610,257.97/84,660.22
  6. Step 6: Final answer
    x = 42,707.31

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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.