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Finding the Fourth Proportional to 84,066.99, 126,100.25 and 27,911.36

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Solution

The fourth proportional to 84,066.99, 126,100.25 and 27,911.36 is: 41,866.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,066.99 : 126,100.25 = 27,911.36 : x
  2. Step 2: Convert to fraction form
    84,066.99/126,100.25 = 27,911.36/x
  3. Step 3: Cross multiply
    84,066.99x = 126,100.25 × 27,911.36
  4. Step 4: Simplify right side
    84,066.99x = 3,519,628,703.78
  5. Step 5: Solve for x
    x = 3,519,628,703.78/84,066.99
  6. Step 6: Final answer
    x = 41,866.95

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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.