Home / 76,789.39-115,199.74-43,524.31

Finding the Fourth Proportional to 76,789.39, 115,199.74 and 43,524.31

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Solution

The fourth proportional to 76,789.39, 115,199.74 and 43,524.31 is: 65,295.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,789.39 : 115,199.74 = 43,524.31 : x
  2. Step 2: Convert to fraction form
    76,789.39/115,199.74 = 43,524.31/x
  3. Step 3: Cross multiply
    76,789.39x = 115,199.74 × 43,524.31
  4. Step 4: Simplify right side
    76,789.39x = 5,013,988,619.68
  5. Step 5: Solve for x
    x = 5,013,988,619.68/76,789.39
  6. Step 6: Final answer
    x = 65,295.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.