Home / 81,396.58-122,112.42-25,235.56

Finding the Fourth Proportional to 81,396.58, 122,112.42 and 25,235.56

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Solution

The fourth proportional to 81,396.58, 122,112.42 and 25,235.56 is: 37,858.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,396.58 : 122,112.42 = 25,235.56 : x
  2. Step 2: Convert to fraction form
    81,396.58/122,112.42 = 25,235.56/x
  3. Step 3: Cross multiply
    81,396.58x = 122,112.42 × 25,235.56
  4. Step 4: Simplify right side
    81,396.58x = 3,081,575,301.66
  5. Step 5: Solve for x
    x = 3,081,575,301.66/81,396.58
  6. Step 6: Final answer
    x = 37,858.78

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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.