Home / 57,678.79-86,517.66-18,235.92

Finding the Fourth Proportional to 57,678.79, 86,517.66 and 18,235.92

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Solution

The fourth proportional to 57,678.79, 86,517.66 and 18,235.92 is: 27,353.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,678.79 : 86,517.66 = 18,235.92 : x
  2. Step 2: Convert to fraction form
    57,678.79/86,517.66 = 18,235.92/x
  3. Step 3: Cross multiply
    57,678.79x = 86,517.66 × 18,235.92
  4. Step 4: Simplify right side
    57,678.79x = 1,577,729,126.35
  5. Step 5: Solve for x
    x = 1,577,729,126.35/57,678.79
  6. Step 6: Final answer
    x = 27,353.71

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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.