Home / 75,112.12-103,661.94-41,578.12

Finding the Fourth Proportional to 75,112.12, 103,661.94 and 41,578.12

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Solution

The fourth proportional to 75,112.12, 103,661.94 and 41,578.12 is: 57,381.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,112.12 : 103,661.94 = 41,578.12 : x
  2. Step 2: Convert to fraction form
    75,112.12/103,661.94 = 41,578.12/x
  3. Step 3: Cross multiply
    75,112.12x = 103,661.94 × 41,578.12
  4. Step 4: Simplify right side
    75,112.12x = 4,310,068,580.75
  5. Step 5: Solve for x
    x = 4,310,068,580.75/75,112.12
  6. Step 6: Final answer
    x = 57,381.80

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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.