Home / 57,619.23-86,428.83-18,180.33

Finding the Fourth Proportional to 57,619.23, 86,428.83 and 18,180.33

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Solution

The fourth proportional to 57,619.23, 86,428.83 and 18,180.33 is: 27,270.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,619.23 : 86,428.83 = 18,180.33 : x
  2. Step 2: Convert to fraction form
    57,619.23/86,428.83 = 18,180.33/x
  3. Step 3: Cross multiply
    57,619.23x = 86,428.83 × 18,180.33
  4. Step 4: Simplify right side
    57,619.23x = 1,571,304,650.91
  5. Step 5: Solve for x
    x = 1,571,304,650.91/57,619.23
  6. Step 6: Final answer
    x = 27,270.49

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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.