Home / 71,659.11-98,890.83-39,395.09

Finding the Fourth Proportional to 71,659.11, 98,890.83 and 39,395.09

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Solution

The fourth proportional to 71,659.11, 98,890.83 and 39,395.09 is: 54,365.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,659.11 : 98,890.83 = 39,395.09 : x
  2. Step 2: Convert to fraction form
    71,659.11/98,890.83 = 39,395.09/x
  3. Step 3: Cross multiply
    71,659.11x = 98,890.83 × 39,395.09
  4. Step 4: Simplify right side
    71,659.11x = 3,895,812,653.57
  5. Step 5: Solve for x
    x = 3,895,812,653.57/71,659.11
  6. Step 6: Final answer
    x = 54,365.91

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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.