Home / 55,131.28-82,696.94-13,578.28

Finding the Fourth Proportional to 55,131.28, 82,696.94 and 13,578.28

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Solution

The fourth proportional to 55,131.28, 82,696.94 and 13,578.28 is: 20,367.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,131.28 : 82,696.94 = 13,578.28 : x
  2. Step 2: Convert to fraction form
    55,131.28/82,696.94 = 13,578.28/x
  3. Step 3: Cross multiply
    55,131.28x = 82,696.94 × 13,578.28
  4. Step 4: Simplify right side
    55,131.28x = 1,122,882,206.46
  5. Step 5: Solve for x
    x = 1,122,882,206.46/55,131.28
  6. Step 6: Final answer
    x = 20,367.42

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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.