Home / 81,216.16-121,873.44-34,469.03

Finding the Fourth Proportional to 81,216.16, 121,873.44 and 34,469.03

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Solution

The fourth proportional to 81,216.16, 121,873.44 and 34,469.03 is: 51,724.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,216.16 : 121,873.44 = 34,469.03 : x
  2. Step 2: Convert to fraction form
    81,216.16/121,873.44 = 34,469.03/x
  3. Step 3: Cross multiply
    81,216.16x = 121,873.44 × 34,469.03
  4. Step 4: Simplify right side
    81,216.16x = 4,200,859,259.56
  5. Step 5: Solve for x
    x = 4,200,859,259.56/81,216.16
  6. Step 6: Final answer
    x = 51,724.43

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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.