Home / 75,839.72-113,759.64-31,454.56

Finding the Fourth Proportional to 75,839.72, 113,759.64 and 31,454.56

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Solution

The fourth proportional to 75,839.72, 113,759.64 and 31,454.56 is: 47,181.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,839.72 : 113,759.64 = 31,454.56 : x
  2. Step 2: Convert to fraction form
    75,839.72/113,759.64 = 31,454.56/x
  3. Step 3: Cross multiply
    75,839.72x = 113,759.64 × 31,454.56
  4. Step 4: Simplify right side
    75,839.72x = 3,578,259,421.96
  5. Step 5: Solve for x
    x = 3,578,259,421.96/75,839.72
  6. Step 6: Final answer
    x = 47,181.86

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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.