Home / 69,039.75-103,560.89-21,653.79

Finding the Fourth Proportional to 69,039.75, 103,560.89 and 21,653.79

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Solution

The fourth proportional to 69,039.75, 103,560.89 and 21,653.79 is: 32,481.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,039.75 : 103,560.89 = 21,653.79 : x
  2. Step 2: Convert to fraction form
    69,039.75/103,560.89 = 21,653.79/x
  3. Step 3: Cross multiply
    69,039.75x = 103,560.89 × 21,653.79
  4. Step 4: Simplify right side
    69,039.75x = 2,242,485,656.00
  5. Step 5: Solve for x
    x = 2,242,485,656.00/69,039.75
  6. Step 6: Final answer
    x = 32,481.08

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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.