Home / 78,815.88-108,764.46-43,004.97

Finding the Fourth Proportional to 78,815.88, 108,764.46 and 43,004.97

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Solution

The fourth proportional to 78,815.88, 108,764.46 and 43,004.97 is: 59,346.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,815.88 : 108,764.46 = 43,004.97 : x
  2. Step 2: Convert to fraction form
    78,815.88/108,764.46 = 43,004.97/x
  3. Step 3: Cross multiply
    78,815.88x = 108,764.46 × 43,004.97
  4. Step 4: Simplify right side
    78,815.88x = 4,677,412,339.37
  5. Step 5: Solve for x
    x = 4,677,412,339.37/78,815.88
  6. Step 6: Final answer
    x = 59,346.07

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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.