Home / 91,128.76-125,755.90-50,296.73

Finding the Fourth Proportional to 91,128.76, 125,755.90 and 50,296.73

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Solution

The fourth proportional to 91,128.76, 125,755.90 and 50,296.73 is: 69,408.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,128.76 : 125,755.90 = 50,296.73 : x
  2. Step 2: Convert to fraction form
    91,128.76/125,755.90 = 50,296.73/x
  3. Step 3: Cross multiply
    91,128.76x = 125,755.90 × 50,296.73
  4. Step 4: Simplify right side
    91,128.76x = 6,325,109,793.69
  5. Step 5: Solve for x
    x = 6,325,109,793.69/91,128.76
  6. Step 6: Final answer
    x = 69,408.49

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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.