Home / 52,286.28-78,428.19-12,843.33

Finding the Fourth Proportional to 52,286.28, 78,428.19 and 12,843.33

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Solution

The fourth proportional to 52,286.28, 78,428.19 and 12,843.33 is: 19,264.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,286.28 : 78,428.19 = 12,843.33 : x
  2. Step 2: Convert to fraction form
    52,286.28/78,428.19 = 12,843.33/x
  3. Step 3: Cross multiply
    52,286.28x = 78,428.19 × 12,843.33
  4. Step 4: Simplify right side
    52,286.28x = 1,007,279,125.47
  5. Step 5: Solve for x
    x = 1,007,279,125.47/52,286.28
  6. Step 6: Final answer
    x = 19,264.69

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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.