Home / 81,390.51-122,093.33-25,231.05

Finding the Fourth Proportional to 81,390.51, 122,093.33 and 25,231.05

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Solution

The fourth proportional to 81,390.51, 122,093.33 and 25,231.05 is: 37,848.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,390.51 : 122,093.33 = 25,231.05 : x
  2. Step 2: Convert to fraction form
    81,390.51/122,093.33 = 25,231.05/x
  3. Step 3: Cross multiply
    81,390.51x = 122,093.33 × 25,231.05
  4. Step 4: Simplify right side
    81,390.51x = 3,080,542,787.74
  5. Step 5: Solve for x
    x = 3,080,542,787.74/81,390.51
  6. Step 6: Final answer
    x = 37,848.92

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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.