Home / 57,947.67-86,919.89-18,507.15

Finding the Fourth Proportional to 57,947.67, 86,919.89 and 18,507.15

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Solution

The fourth proportional to 57,947.67, 86,919.89 and 18,507.15 is: 27,760.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,947.67 : 86,919.89 = 18,507.15 : x
  2. Step 2: Convert to fraction form
    57,947.67/86,919.89 = 18,507.15/x
  3. Step 3: Cross multiply
    57,947.67x = 86,919.89 × 18,507.15
  4. Step 4: Simplify right side
    57,947.67x = 1,608,639,349.68
  5. Step 5: Solve for x
    x = 1,608,639,349.68/57,947.67
  6. Step 6: Final answer
    x = 27,760.21

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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.