Home / 89,786.86-123,905.70-49,500.34

Finding the Fourth Proportional to 89,786.86, 123,905.70 and 49,500.34

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Solution

The fourth proportional to 89,786.86, 123,905.70 and 49,500.34 is: 68,310.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,786.86 : 123,905.70 = 49,500.34 : x
  2. Step 2: Convert to fraction form
    89,786.86/123,905.70 = 49,500.34/x
  3. Step 3: Cross multiply
    89,786.86x = 123,905.70 × 49,500.34
  4. Step 4: Simplify right side
    89,786.86x = 6,133,374,277.94
  5. Step 5: Solve for x
    x = 6,133,374,277.94/89,786.86
  6. Step 6: Final answer
    x = 68,310.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.