Home / 128,577.11-192,850.31-33,814.68

Finding the Fourth Proportional to 128,577.11, 192,850.31 and 33,814.68

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Solution

The fourth proportional to 128,577.11, 192,850.31 and 33,814.68 is: 50,717.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,577.11 : 192,850.31 = 33,814.68 : x
  2. Step 2: Convert to fraction form
    128,577.11/192,850.31 = 33,814.68/x
  3. Step 3: Cross multiply
    128,577.11x = 192,850.31 × 33,814.68
  4. Step 4: Simplify right side
    128,577.11x = 6,521,171,351.48
  5. Step 5: Solve for x
    x = 6,521,171,351.48/128,577.11
  6. Step 6: Final answer
    x = 50,717.98

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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.