Home / 81,361.50-122,228.94-57,727.32

Finding the Fourth Proportional to 81,361.50, 122,228.94 and 57,727.32

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Solution

The fourth proportional to 81,361.50, 122,228.94 and 57,727.32 is: 86,723.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,361.50 : 122,228.94 = 57,727.32 : x
  2. Step 2: Convert to fraction form
    81,361.50/122,228.94 = 57,727.32/x
  3. Step 3: Cross multiply
    81,361.50x = 122,228.94 × 57,727.32
  4. Step 4: Simplify right side
    81,361.50x = 7,055,949,132.64
  5. Step 5: Solve for x
    x = 7,055,949,132.64/81,361.50
  6. Step 6: Final answer
    x = 86,723.44

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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.