Home / 84,078.01-126,132-27,921.52

Finding the Fourth Proportional to 84,078.01, 126,132 and 27,921.52

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Solution

The fourth proportional to 84,078.01, 126,132 and 27,921.52 is: 41,887.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,078.01 : 126,132 = 27,921.52 : x
  2. Step 2: Convert to fraction form
    84,078.01/126,132 = 27,921.52/x
  3. Step 3: Cross multiply
    84,078.01x = 126,132 × 27,921.52
  4. Step 4: Simplify right side
    84,078.01x = 3,521,797,160.64
  5. Step 5: Solve for x
    x = 3,521,797,160.64/84,078.01
  6. Step 6: Final answer
    x = 41,887.26

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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.