Home / 81,374.14-122,002.07-34,002.79

Finding the Fourth Proportional to 81,374.14, 122,002.07 and 34,002.79

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Solution

The fourth proportional to 81,374.14, 122,002.07 and 34,002.79 is: 50,979.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,374.14 : 122,002.07 = 34,002.79 : x
  2. Step 2: Convert to fraction form
    81,374.14/122,002.07 = 34,002.79/x
  3. Step 3: Cross multiply
    81,374.14x = 122,002.07 × 34,002.79
  4. Step 4: Simplify right side
    81,374.14x = 4,148,410,765.78
  5. Step 5: Solve for x
    x = 4,148,410,765.78/81,374.14
  6. Step 6: Final answer
    x = 50,979.47

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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.