Home / 75,839.58-113,759.43-20,435.58

Finding the Fourth Proportional to 75,839.58, 113,759.43 and 20,435.58

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Solution

The fourth proportional to 75,839.58, 113,759.43 and 20,435.58 is: 30,653.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,839.58 : 113,759.43 = 20,435.58 : x
  2. Step 2: Convert to fraction form
    75,839.58/113,759.43 = 20,435.58/x
  3. Step 3: Cross multiply
    75,839.58x = 113,759.43 × 20,435.58
  4. Step 4: Simplify right side
    75,839.58x = 2,324,739,932.52
  5. Step 5: Solve for x
    x = 2,324,739,932.52/75,839.58
  6. Step 6: Final answer
    x = 30,653.39

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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.