Home / 57,805.28-86,683.44-18,351.80

Finding the Fourth Proportional to 57,805.28, 86,683.44 and 18,351.80

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Solution

The fourth proportional to 57,805.28, 86,683.44 and 18,351.80 is: 27,519.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,805.28 : 86,683.44 = 18,351.80 : x
  2. Step 2: Convert to fraction form
    57,805.28/86,683.44 = 18,351.80/x
  3. Step 3: Cross multiply
    57,805.28x = 86,683.44 × 18,351.80
  4. Step 4: Simplify right side
    57,805.28x = 1,590,797,154.19
  5. Step 5: Solve for x
    x = 1,590,797,154.19/57,805.28
  6. Step 6: Final answer
    x = 27,519.93

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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.