Home / 51,286.62-70,698-39,936.09

Finding the Fourth Proportional to 51,286.62, 70,698 and 39,936.09

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Solution

The fourth proportional to 51,286.62, 70,698 and 39,936.09 is: 55,051.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,286.62 : 70,698 = 39,936.09 : x
  2. Step 2: Convert to fraction form
    51,286.62/70,698 = 39,936.09/x
  3. Step 3: Cross multiply
    51,286.62x = 70,698 × 39,936.09
  4. Step 4: Simplify right side
    51,286.62x = 2,823,401,690.82
  5. Step 5: Solve for x
    x = 2,823,401,690.82/51,286.62
  6. Step 6: Final answer
    x = 55,051.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.