Home / 75,249.86-103,845.38-51,375.92

Finding the Fourth Proportional to 75,249.86, 103,845.38 and 51,375.92

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Solution

The fourth proportional to 75,249.86, 103,845.38 and 51,375.92 is: 70,899.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,249.86 : 103,845.38 = 51,375.92 : x
  2. Step 2: Convert to fraction form
    75,249.86/103,845.38 = 51,375.92/x
  3. Step 3: Cross multiply
    75,249.86x = 103,845.38 × 51,375.92
  4. Step 4: Simplify right side
    75,249.86x = 5,335,151,159.14
  5. Step 5: Solve for x
    x = 5,335,151,159.14/75,249.86
  6. Step 6: Final answer
    x = 70,899.16

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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.