Home / 69,945.12-104,878.80-27,821.88

Finding the Fourth Proportional to 69,945.12, 104,878.80 and 27,821.88

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Solution

The fourth proportional to 69,945.12, 104,878.80 and 27,821.88 is: 41,717.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,945.12 : 104,878.80 = 27,821.88 : x
  2. Step 2: Convert to fraction form
    69,945.12/104,878.80 = 27,821.88/x
  3. Step 3: Cross multiply
    69,945.12x = 104,878.80 × 27,821.88
  4. Step 4: Simplify right side
    69,945.12x = 2,917,925,388.14
  5. Step 5: Solve for x
    x = 2,917,925,388.14/69,945.12
  6. Step 6: Final answer
    x = 41,717.35

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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.