Home / 55,214.33-82,796.85-20,129.38

Finding the Fourth Proportional to 55,214.33, 82,796.85 and 20,129.38

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Solution

The fourth proportional to 55,214.33, 82,796.85 and 20,129.38 is: 30,185.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,214.33 : 82,796.85 = 20,129.38 : x
  2. Step 2: Convert to fraction form
    55,214.33/82,796.85 = 20,129.38/x
  3. Step 3: Cross multiply
    55,214.33x = 82,796.85 × 20,129.38
  4. Step 4: Simplify right side
    55,214.33x = 1,666,649,049.46
  5. Step 5: Solve for x
    x = 1,666,649,049.46/55,214.33
  6. Step 6: Final answer
    x = 30,185.08

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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.