Home / 55,906.92-83,865.81-20,838.36

Finding the Fourth Proportional to 55,906.92, 83,865.81 and 20,838.36

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Solution

The fourth proportional to 55,906.92, 83,865.81 and 20,838.36 is: 31,259.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,906.92 : 83,865.81 = 20,838.36 : x
  2. Step 2: Convert to fraction form
    55,906.92/83,865.81 = 20,838.36/x
  3. Step 3: Cross multiply
    55,906.92x = 83,865.81 × 20,838.36
  4. Step 4: Simplify right side
    55,906.92x = 1,747,625,940.47
  5. Step 5: Solve for x
    x = 1,747,625,940.47/55,906.92
  6. Step 6: Final answer
    x = 31,259.56

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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.