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Finding the Fourth Proportional to 78,863.36, 108,832 and 43,054.08

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Solution

The fourth proportional to 78,863.36, 108,832 and 43,054.08 is: 59,414.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,863.36 : 108,832 = 43,054.08 : x
  2. Step 2: Convert to fraction form
    78,863.36/108,832 = 43,054.08/x
  3. Step 3: Cross multiply
    78,863.36x = 108,832 × 43,054.08
  4. Step 4: Simplify right side
    78,863.36x = 4,685,661,634.56
  5. Step 5: Solve for x
    x = 4,685,661,634.56/78,863.36
  6. Step 6: Final answer
    x = 59,414.94

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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.