Home / 89,629.20-123,683.76-49,344.66

Finding the Fourth Proportional to 89,629.20, 123,683.76 and 49,344.66

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Solution

The fourth proportional to 89,629.20, 123,683.76 and 49,344.66 is: 68,093.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,629.20 : 123,683.76 = 49,344.66 : x
  2. Step 2: Convert to fraction form
    89,629.20/123,683.76 = 49,344.66/x
  3. Step 3: Cross multiply
    89,629.20x = 123,683.76 × 49,344.66
  4. Step 4: Simplify right side
    89,629.20x = 6,103,133,084.72
  5. Step 5: Solve for x
    x = 6,103,133,084.72/89,629.20
  6. Step 6: Final answer
    x = 68,093.13

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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.