Home / 57,586.91-86,388.66-18,147.20

Finding the Fourth Proportional to 57,586.91, 86,388.66 and 18,147.20

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Solution

The fourth proportional to 57,586.91, 86,388.66 and 18,147.20 is: 27,223.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,586.91 : 86,388.66 = 18,147.20 : x
  2. Step 2: Convert to fraction form
    57,586.91/86,388.66 = 18,147.20/x
  3. Step 3: Cross multiply
    57,586.91x = 86,388.66 × 18,147.20
  4. Step 4: Simplify right side
    57,586.91x = 1,567,711,858.81
  5. Step 5: Solve for x
    x = 1,567,711,858.81/57,586.91
  6. Step 6: Final answer
    x = 27,223.41

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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.