Home / 74,607.45-111,876.09-30,200.41

Finding the Fourth Proportional to 74,607.45, 111,876.09 and 30,200.41

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Solution

The fourth proportional to 74,607.45, 111,876.09 and 30,200.41 is: 45,286.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,607.45 : 111,876.09 = 30,200.41 : x
  2. Step 2: Convert to fraction form
    74,607.45/111,876.09 = 30,200.41/x
  3. Step 3: Cross multiply
    74,607.45x = 111,876.09 × 30,200.41
  4. Step 4: Simplify right side
    74,607.45x = 3,378,703,787.20
  5. Step 5: Solve for x
    x = 3,378,703,787.20/74,607.45
  6. Step 6: Final answer
    x = 45,286.41

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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.