Home / 57,661.46-86,491.66-18,218.56

Finding the Fourth Proportional to 57,661.46, 86,491.66 and 18,218.56

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Solution

The fourth proportional to 57,661.46, 86,491.66 and 18,218.56 is: 27,327.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,661.46 : 86,491.66 = 18,218.56 : x
  2. Step 2: Convert to fraction form
    57,661.46/86,491.66 = 18,218.56/x
  3. Step 3: Cross multiply
    57,661.46x = 86,491.66 × 18,218.56
  4. Step 4: Simplify right side
    57,661.46x = 1,575,753,497.21
  5. Step 5: Solve for x
    x = 1,575,753,497.21/57,661.46
  6. Step 6: Final answer
    x = 27,327.67

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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.