Home / 75,105.14-103,641.97-41,112.78

Finding the Fourth Proportional to 75,105.14, 103,641.97 and 41,112.78

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Solution

The fourth proportional to 75,105.14, 103,641.97 and 41,112.78 is: 56,733.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,105.14 : 103,641.97 = 41,112.78 : x
  2. Step 2: Convert to fraction form
    75,105.14/103,641.97 = 41,112.78/x
  3. Step 3: Cross multiply
    75,105.14x = 103,641.97 × 41,112.78
  4. Step 4: Simplify right side
    75,105.14x = 4,261,009,667.70
  5. Step 5: Solve for x
    x = 4,261,009,667.70/75,105.14
  6. Step 6: Final answer
    x = 56,733.93

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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.