Home / 55,974.96-83,959.56-20,911.86

Finding the Fourth Proportional to 55,974.96, 83,959.56 and 20,911.86

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Solution

The fourth proportional to 55,974.96, 83,959.56 and 20,911.86 is: 31,366.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,974.96 : 83,959.56 = 20,911.86 : x
  2. Step 2: Convert to fraction form
    55,974.96/83,959.56 = 20,911.86/x
  3. Step 3: Cross multiply
    55,974.96x = 83,959.56 × 20,911.86
  4. Step 4: Simplify right side
    55,974.96x = 1,755,750,564.38
  5. Step 5: Solve for x
    x = 1,755,750,564.38/55,974.96
  6. Step 6: Final answer
    x = 31,366.71

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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.