Home / 81,617.40-122,231.70-50,124.60

Finding the Fourth Proportional to 81,617.40, 122,231.70 and 50,124.60

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Solution

The fourth proportional to 81,617.40, 122,231.70 and 50,124.60 is: 75,067.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,617.40 : 122,231.70 = 50,124.60 : x
  2. Step 2: Convert to fraction form
    81,617.40/122,231.70 = 50,124.60/x
  3. Step 3: Cross multiply
    81,617.40x = 122,231.70 × 50,124.60
  4. Step 4: Simplify right side
    81,617.40x = 6,126,815,069.82
  5. Step 5: Solve for x
    x = 6,126,815,069.82/81,617.40
  6. Step 6: Final answer
    x = 75,067.51

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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.