Home / 55,780.36-83,652.78-18,331.78

Finding the Fourth Proportional to 55,780.36, 83,652.78 and 18,331.78

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Solution

The fourth proportional to 55,780.36, 83,652.78 and 18,331.78 is: 27,491.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,780.36 : 83,652.78 = 18,331.78 : x
  2. Step 2: Convert to fraction form
    55,780.36/83,652.78 = 18,331.78/x
  3. Step 3: Cross multiply
    55,780.36x = 83,652.78 × 18,331.78
  4. Step 4: Simplify right side
    55,780.36x = 1,533,504,359.35
  5. Step 5: Solve for x
    x = 1,533,504,359.35/55,780.36
  6. Step 6: Final answer
    x = 27,491.83

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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.