Home / 55,190.57-76,164.61-39,086.69

Finding the Fourth Proportional to 55,190.57, 76,164.61 and 39,086.69

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Solution

The fourth proportional to 55,190.57, 76,164.61 and 39,086.69 is: 53,940.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,190.57 : 76,164.61 = 39,086.69 : x
  2. Step 2: Convert to fraction form
    55,190.57/76,164.61 = 39,086.69/x
  3. Step 3: Cross multiply
    55,190.57x = 76,164.61 × 39,086.69
  4. Step 4: Simplify right side
    55,190.57x = 2,977,022,500.04
  5. Step 5: Solve for x
    x = 2,977,022,500.04/55,190.57
  6. Step 6: Final answer
    x = 53,940.78

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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.