Home / 69,747.52-104,579.16-28,145.92

Finding the Fourth Proportional to 69,747.52, 104,579.16 and 28,145.92

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Solution

The fourth proportional to 69,747.52, 104,579.16 and 28,145.92 is: 42,201.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,747.52 : 104,579.16 = 28,145.92 : x
  2. Step 2: Convert to fraction form
    69,747.52/104,579.16 = 28,145.92/x
  3. Step 3: Cross multiply
    69,747.52x = 104,579.16 × 28,145.92
  4. Step 4: Simplify right side
    69,747.52x = 2,943,476,671.03
  5. Step 5: Solve for x
    x = 2,943,476,671.03/69,747.52
  6. Step 6: Final answer
    x = 42,201.88

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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.