Home / 90,778.98-125,273.19-50,491.87

Finding the Fourth Proportional to 90,778.98, 125,273.19 and 50,491.87

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Solution

The fourth proportional to 90,778.98, 125,273.19 and 50,491.87 is: 69,677.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,778.98 : 125,273.19 = 50,491.87 : x
  2. Step 2: Convert to fraction form
    90,778.98/125,273.19 = 50,491.87/x
  3. Step 3: Cross multiply
    90,778.98x = 125,273.19 × 50,491.87
  4. Step 4: Simplify right side
    90,778.98x = 6,325,277,371.51
  5. Step 5: Solve for x
    x = 6,325,277,371.51/90,778.98
  6. Step 6: Final answer
    x = 69,677.78

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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.