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Finding the Fourth Proportional to 71,743.00, 99,005.26 and 39,911.21

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Solution

The fourth proportional to 71,743.00, 99,005.26 and 39,911.21 is: 55,077.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,743.00 : 99,005.26 = 39,911.21 : x
  2. Step 2: Convert to fraction form
    71,743.00/99,005.26 = 39,911.21/x
  3. Step 3: Cross multiply
    71,743.00x = 99,005.26 × 39,911.21
  4. Step 4: Simplify right side
    71,743.00x = 3,951,419,523.41
  5. Step 5: Solve for x
    x = 3,951,419,523.41/71,743.00
  6. Step 6: Final answer
    x = 55,077.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.