Home / 52,286.43-78,429.90-12,843.55

Finding the Fourth Proportional to 52,286.43, 78,429.90 and 12,843.55

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Solution

The fourth proportional to 52,286.43, 78,429.90 and 12,843.55 is: 19,265.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,286.43 : 78,429.90 = 12,843.55 : x
  2. Step 2: Convert to fraction form
    52,286.43/78,429.90 = 12,843.55/x
  3. Step 3: Cross multiply
    52,286.43x = 78,429.90 × 12,843.55
  4. Step 4: Simplify right side
    52,286.43x = 1,007,318,488.35
  5. Step 5: Solve for x
    x = 1,007,318,488.35/52,286.43
  6. Step 6: Final answer
    x = 19,265.39

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1.5x scale

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.