Home / 89,211.75-123,112.22-49,467.75

Finding the Fourth Proportional to 89,211.75, 123,112.22 and 49,467.75

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Solution

The fourth proportional to 89,211.75, 123,112.22 and 49,467.75 is: 68,265.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,211.75 : 123,112.22 = 49,467.75 : x
  2. Step 2: Convert to fraction form
    89,211.75/123,112.22 = 49,467.75/x
  3. Step 3: Cross multiply
    89,211.75x = 123,112.22 × 49,467.75
  4. Step 4: Simplify right side
    89,211.75x = 6,090,084,273.57
  5. Step 5: Solve for x
    x = 6,090,084,273.57/89,211.75
  6. Step 6: Final answer
    x = 68,265.50

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1.5x scale

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.