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Finding the Fourth Proportional to 71,141.00, 98,173.22 and 39,309.21

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Solution

The fourth proportional to 71,141.00, 98,173.22 and 39,309.21 is: 54,245.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,141.00 : 98,173.22 = 39,309.21 : x
  2. Step 2: Convert to fraction form
    71,141.00/98,173.22 = 39,309.21/x
  3. Step 3: Cross multiply
    71,141.00x = 98,173.22 × 39,309.21
  4. Step 4: Simplify right side
    71,141.00x = 3,859,111,524.81
  5. Step 5: Solve for x
    x = 3,859,111,524.81/71,141.00
  6. Step 6: Final answer
    x = 54,245.96

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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.