Home / 81,042.96-111,844.92-45,239.96

Finding the Fourth Proportional to 81,042.96, 111,844.92 and 45,239.96

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Solution

The fourth proportional to 81,042.96, 111,844.92 and 45,239.96 is: 62,434.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,042.96 : 111,844.92 = 45,239.96 : x
  2. Step 2: Convert to fraction form
    81,042.96/111,844.92 = 45,239.96/x
  3. Step 3: Cross multiply
    81,042.96x = 111,844.92 × 45,239.96
  4. Step 4: Simplify right side
    81,042.96x = 5,059,859,707.00
  5. Step 5: Solve for x
    x = 5,059,859,707.00/81,042.96
  6. Step 6: Final answer
    x = 62,434.29

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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.