Home / 57,763.68-86,659.37-18,320.78

Finding the Fourth Proportional to 57,763.68, 86,659.37 and 18,320.78

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Solution

The fourth proportional to 57,763.68, 86,659.37 and 18,320.78 is: 27,485.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,763.68 : 86,659.37 = 18,320.78 : x
  2. Step 2: Convert to fraction form
    57,763.68/86,659.37 = 18,320.78/x
  3. Step 3: Cross multiply
    57,763.68x = 86,659.37 × 18,320.78
  4. Step 4: Simplify right side
    57,763.68x = 1,587,667,446.46
  5. Step 5: Solve for x
    x = 1,587,667,446.46/57,763.68
  6. Step 6: Final answer
    x = 27,485.57

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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.