Home / 53,709.72-80,564.79-18,171.30

Finding the Fourth Proportional to 53,709.72, 80,564.79 and 18,171.30

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Solution

The fourth proportional to 53,709.72, 80,564.79 and 18,171.30 is: 27,257.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,709.72 : 80,564.79 = 18,171.30 : x
  2. Step 2: Convert to fraction form
    53,709.72/80,564.79 = 18,171.30/x
  3. Step 3: Cross multiply
    53,709.72x = 80,564.79 × 18,171.30
  4. Step 4: Simplify right side
    53,709.72x = 1,463,967,338.79
  5. Step 5: Solve for x
    x = 1,463,967,338.79/53,709.72
  6. Step 6: Final answer
    x = 27,257.03

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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.