Home / 89,105.85-133,616.93-51,676.56

Finding the Fourth Proportional to 89,105.85, 133,616.93 and 51,676.56

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Solution

The fourth proportional to 89,105.85, 133,616.93 and 51,676.56 is: 77,490.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,105.85 : 133,616.93 = 51,676.56 : x
  2. Step 2: Convert to fraction form
    89,105.85/133,616.93 = 51,676.56/x
  3. Step 3: Cross multiply
    89,105.85x = 133,616.93 × 51,676.56
  4. Step 4: Simplify right side
    89,105.85x = 6,904,863,041.78
  5. Step 5: Solve for x
    x = 6,904,863,041.78/89,105.85
  6. Step 6: Final answer
    x = 77,490.57

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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.