Home / 71,806.20-99,092.57-39,982.61

Finding the Fourth Proportional to 71,806.20, 99,092.57 and 39,982.61

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Solution

The fourth proportional to 71,806.20, 99,092.57 and 39,982.61 is: 55,176.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,806.20 : 99,092.57 = 39,982.61 : x
  2. Step 2: Convert to fraction form
    71,806.20/99,092.57 = 39,982.61/x
  3. Step 3: Cross multiply
    71,806.20x = 99,092.57 × 39,982.61
  4. Step 4: Simplify right side
    71,806.20x = 3,961,979,628.03
  5. Step 5: Solve for x
    x = 3,961,979,628.03/71,806.20
  6. Step 6: Final answer
    x = 55,176.01

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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.