Home / 87,755.78-121,105.05-50,033.54

Finding the Fourth Proportional to 87,755.78, 121,105.05 and 50,033.54

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Solution

The fourth proportional to 87,755.78, 121,105.05 and 50,033.54 is: 69,047.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,755.78 : 121,105.05 = 50,033.54 : x
  2. Step 2: Convert to fraction form
    87,755.78/121,105.05 = 50,033.54/x
  3. Step 3: Cross multiply
    87,755.78x = 121,105.05 × 50,033.54
  4. Step 4: Simplify right side
    87,755.78x = 6,059,314,363.38
  5. Step 5: Solve for x
    x = 6,059,314,363.38/87,755.78
  6. Step 6: Final answer
    x = 69,047.47

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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.