Home / 90,100.15-135,129.26-33,945.89

Finding the Fourth Proportional to 90,100.15, 135,129.26 and 33,945.89

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Solution

The fourth proportional to 90,100.15, 135,129.26 and 33,945.89 is: 50,910.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,100.15 : 135,129.26 = 33,945.89 : x
  2. Step 2: Convert to fraction form
    90,100.15/135,129.26 = 33,945.89/x
  3. Step 3: Cross multiply
    90,100.15x = 135,129.26 × 33,945.89
  4. Step 4: Simplify right side
    90,100.15x = 4,587,082,404.96
  5. Step 5: Solve for x
    x = 4,587,082,404.96/90,100.15
  6. Step 6: Final answer
    x = 50,910.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.