Home / 81,717.62-112,772.82-45,908.36

Finding the Fourth Proportional to 81,717.62, 112,772.82 and 45,908.36

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Solution

The fourth proportional to 81,717.62, 112,772.82 and 45,908.36 is: 63,354.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,717.62 : 112,772.82 = 45,908.36 : x
  2. Step 2: Convert to fraction form
    81,717.62/112,772.82 = 45,908.36/x
  3. Step 3: Cross multiply
    81,717.62x = 112,772.82 × 45,908.36
  4. Step 4: Simplify right side
    81,717.62x = 5,177,215,218.78
  5. Step 5: Solve for x
    x = 5,177,215,218.78/81,717.62
  6. Step 6: Final answer
    x = 63,354.94

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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.