Home / 55,715.13-83,564.19-18,279

Finding the Fourth Proportional to 55,715.13, 83,564.19 and 18,279

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Solution

The fourth proportional to 55,715.13, 83,564.19 and 18,279 is: 27,415.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,715.13 : 83,564.19 = 18,279 : x
  2. Step 2: Convert to fraction form
    55,715.13/83,564.19 = 18,279/x
  3. Step 3: Cross multiply
    55,715.13x = 83,564.19 × 18,279
  4. Step 4: Simplify right side
    55,715.13x = 1,527,469,829.01
  5. Step 5: Solve for x
    x = 1,527,469,829.01/55,715.13
  6. Step 6: Final answer
    x = 27,415.71

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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.