Home / 87,192.82-120,362.66-58,936.78

Finding the Fourth Proportional to 87,192.82, 120,362.66 and 58,936.78

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Solution

The fourth proportional to 87,192.82, 120,362.66 and 58,936.78 is: 81,357.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,192.82 : 120,362.66 = 58,936.78 : x
  2. Step 2: Convert to fraction form
    87,192.82/120,362.66 = 58,936.78/x
  3. Step 3: Cross multiply
    87,192.82x = 120,362.66 × 58,936.78
  4. Step 4: Simplify right side
    87,192.82x = 7,093,787,612.63
  5. Step 5: Solve for x
    x = 7,093,787,612.63/87,192.82
  6. Step 6: Final answer
    x = 81,357.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.