Home / 39,105.60-53,996.79-36,120.36

Finding the Fourth Proportional to 39,105.60, 53,996.79 and 36,120.36

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Solution

The fourth proportional to 39,105.60, 53,996.79 and 36,120.36 is: 49,874.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,105.60 : 53,996.79 = 36,120.36 : x
  2. Step 2: Convert to fraction form
    39,105.60/53,996.79 = 36,120.36/x
  3. Step 3: Cross multiply
    39,105.60x = 53,996.79 × 36,120.36
  4. Step 4: Simplify right side
    39,105.60x = 1,950,383,493.64
  5. Step 5: Solve for x
    x = 1,950,383,493.64/39,105.60
  6. Step 6: Final answer
    x = 49,874.79

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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.