Home / 89,688.80-123,765.97-49,401.69

Finding the Fourth Proportional to 89,688.80, 123,765.97 and 49,401.69

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Solution

The fourth proportional to 89,688.80, 123,765.97 and 49,401.69 is: 68,171.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,688.80 : 123,765.97 = 49,401.69 : x
  2. Step 2: Convert to fraction form
    89,688.80/123,765.97 = 49,401.69/x
  3. Step 3: Cross multiply
    89,688.80x = 123,765.97 × 49,401.69
  4. Step 4: Simplify right side
    89,688.80x = 6,114,247,835.48
  5. Step 5: Solve for x
    x = 6,114,247,835.48/89,688.80
  6. Step 6: Final answer
    x = 68,171.81

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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.