Home / 81,161.94-111,998.46-45,354.66

Finding the Fourth Proportional to 81,161.94, 111,998.46 and 45,354.66

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Solution

The fourth proportional to 81,161.94, 111,998.46 and 45,354.66 is: 62,586.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,161.94 : 111,998.46 = 45,354.66 : x
  2. Step 2: Convert to fraction form
    81,161.94/111,998.46 = 45,354.66/x
  3. Step 3: Cross multiply
    81,161.94x = 111,998.46 × 45,354.66
  4. Step 4: Simplify right side
    81,161.94x = 5,079,652,073.82
  5. Step 5: Solve for x
    x = 5,079,652,073.82/81,161.94
  6. Step 6: Final answer
    x = 62,586.63

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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.