Home / 80,112.84-119,947.78-60,331.42

Finding the Fourth Proportional to 80,112.84, 119,947.78 and 60,331.42

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Solution

The fourth proportional to 80,112.84, 119,947.78 and 60,331.42 is: 90,330.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,112.84 : 119,947.78 = 60,331.42 : x
  2. Step 2: Convert to fraction form
    80,112.84/119,947.78 = 60,331.42/x
  3. Step 3: Cross multiply
    80,112.84x = 119,947.78 × 60,331.42
  4. Step 4: Simplify right side
    80,112.84x = 7,236,619,893.25
  5. Step 5: Solve for x
    x = 7,236,619,893.25/80,112.84
  6. Step 6: Final answer
    x = 90,330.34

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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.