Home / 76,383.76-114,464.92-54,240.56

Finding the Fourth Proportional to 76,383.76, 114,464.92 and 54,240.56

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Solution

The fourth proportional to 76,383.76, 114,464.92 and 54,240.56 is: 81,282.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,383.76 : 114,464.92 = 54,240.56 : x
  2. Step 2: Convert to fraction form
    76,383.76/114,464.92 = 54,240.56/x
  3. Step 3: Cross multiply
    76,383.76x = 114,464.92 × 54,240.56
  4. Step 4: Simplify right side
    76,383.76x = 6,208,641,361.16
  5. Step 5: Solve for x
    x = 6,208,641,361.16/76,383.76
  6. Step 6: Final answer
    x = 81,282.22

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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.