Home / 78,899.22-108,876.14-43,081.96

Finding the Fourth Proportional to 78,899.22, 108,876.14 and 43,081.96

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Solution

The fourth proportional to 78,899.22, 108,876.14 and 43,081.96 is: 59,450.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,899.22 : 108,876.14 = 43,081.96 : x
  2. Step 2: Convert to fraction form
    78,899.22/108,876.14 = 43,081.96/x
  3. Step 3: Cross multiply
    78,899.22x = 108,876.14 × 43,081.96
  4. Step 4: Simplify right side
    78,899.22x = 4,690,597,293.02
  5. Step 5: Solve for x
    x = 4,690,597,293.02/78,899.22
  6. Step 6: Final answer
    x = 59,450.49

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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.