Home / 81,447.30-122,190.08-25,284.54

Finding the Fourth Proportional to 81,447.30, 122,190.08 and 25,284.54

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Solution

The fourth proportional to 81,447.30, 122,190.08 and 25,284.54 is: 37,932.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,447.30 : 122,190.08 = 25,284.54 : x
  2. Step 2: Convert to fraction form
    81,447.30/122,190.08 = 25,284.54/x
  3. Step 3: Cross multiply
    81,447.30x = 122,190.08 × 25,284.54
  4. Step 4: Simplify right side
    81,447.30x = 3,089,519,965.36
  5. Step 5: Solve for x
    x = 3,089,519,965.36/81,447.30
  6. Step 6: Final answer
    x = 37,932.75

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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.