Home / 52,286.44-78,428.92-12,843.40

Finding the Fourth Proportional to 52,286.44, 78,428.92 and 12,843.40

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Solution

The fourth proportional to 52,286.44, 78,428.92 and 12,843.40 is: 19,264.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,286.44 : 78,428.92 = 12,843.40 : x
  2. Step 2: Convert to fraction form
    52,286.44/78,428.92 = 12,843.40/x
  3. Step 3: Cross multiply
    52,286.44x = 78,428.92 × 12,843.40
  4. Step 4: Simplify right side
    52,286.44x = 1,007,293,991.13
  5. Step 5: Solve for x
    x = 1,007,293,991.13/52,286.44
  6. Step 6: Final answer
    x = 19,264.92

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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.