Home / 75,645.32-113,454.56-28,249.80

Finding the Fourth Proportional to 75,645.32, 113,454.56 and 28,249.80

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Solution

The fourth proportional to 75,645.32, 113,454.56 and 28,249.80 is: 42,369.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,645.32 : 113,454.56 = 28,249.80 : x
  2. Step 2: Convert to fraction form
    75,645.32/113,454.56 = 28,249.80/x
  3. Step 3: Cross multiply
    75,645.32x = 113,454.56 × 28,249.80
  4. Step 4: Simplify right side
    75,645.32x = 3,205,068,629.09
  5. Step 5: Solve for x
    x = 3,205,068,629.09/75,645.32
  6. Step 6: Final answer
    x = 42,369.69

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1.5x scale

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.