Home / 69,788.79-104,724.23-25,418.21

Finding the Fourth Proportional to 69,788.79, 104,724.23 and 25,418.21

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Solution

The fourth proportional to 69,788.79, 104,724.23 and 25,418.21 is: 38,142.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,788.79 : 104,724.23 = 25,418.21 : x
  2. Step 2: Convert to fraction form
    69,788.79/104,724.23 = 25,418.21/x
  3. Step 3: Cross multiply
    69,788.79x = 104,724.23 × 25,418.21
  4. Step 4: Simplify right side
    69,788.79x = 2,661,901,819.52
  5. Step 5: Solve for x
    x = 2,661,901,819.52/69,788.79
  6. Step 6: Final answer
    x = 38,142.25

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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.