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Finding the Fourth Proportional to 84,110.22, 126,188.01 and 27,959.40

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Solution

The fourth proportional to 84,110.22, 126,188.01 and 27,959.40 is: 41,946.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,110.22 : 126,188.01 = 27,959.40 : x
  2. Step 2: Convert to fraction form
    84,110.22/126,188.01 = 27,959.40/x
  3. Step 3: Cross multiply
    84,110.22x = 126,188.01 × 27,959.40
  4. Step 4: Simplify right side
    84,110.22x = 3,528,141,046.79
  5. Step 5: Solve for x
    x = 3,528,141,046.79/84,110.22
  6. Step 6: Final answer
    x = 41,946.64

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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.