Home / 55,182.63-82,786.29-20,122.29

Finding the Fourth Proportional to 55,182.63, 82,786.29 and 20,122.29

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Solution

The fourth proportional to 55,182.63, 82,786.29 and 20,122.29 is: 30,187.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,182.63 : 82,786.29 = 20,122.29 : x
  2. Step 2: Convert to fraction form
    55,182.63/82,786.29 = 20,122.29/x
  3. Step 3: Cross multiply
    55,182.63x = 82,786.29 × 20,122.29
  4. Step 4: Simplify right side
    55,182.63x = 1,665,849,735.40
  5. Step 5: Solve for x
    x = 1,665,849,735.40/55,182.63
  6. Step 6: Final answer
    x = 30,187.93

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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.