Home / 55,221.36-82,832.03-13,668.36

Finding the Fourth Proportional to 55,221.36, 82,832.03 and 13,668.36

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Solution

The fourth proportional to 55,221.36, 82,832.03 and 13,668.36 is: 20,502.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,221.36 : 82,832.03 = 13,668.36 : x
  2. Step 2: Convert to fraction form
    55,221.36/82,832.03 = 13,668.36/x
  3. Step 3: Cross multiply
    55,221.36x = 82,832.03 × 13,668.36
  4. Step 4: Simplify right side
    55,221.36x = 1,132,178,005.57
  5. Step 5: Solve for x
    x = 1,132,178,005.57/55,221.36
  6. Step 6: Final answer
    x = 20,502.54

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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.