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Finding the Fourth Proportional to 39,121.60, 58,617.60 and 33,289.60

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Solution

The fourth proportional to 39,121.60, 58,617.60 and 33,289.60 is: 49,879.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,121.60 : 58,617.60 = 33,289.60 : x
  2. Step 2: Convert to fraction form
    39,121.60/58,617.60 = 33,289.60/x
  3. Step 3: Cross multiply
    39,121.60x = 58,617.60 × 33,289.60
  4. Step 4: Simplify right side
    39,121.60x = 1,951,356,456.96
  5. Step 5: Solve for x
    x = 1,951,356,456.96/39,121.60
  6. Step 6: Final answer
    x = 49,879.26

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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.