Home / 39,936.35-55,145.33-35,679.90

Finding the Fourth Proportional to 39,936.35, 55,145.33 and 35,679.90

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Solution

The fourth proportional to 39,936.35, 55,145.33 and 35,679.90 is: 49,267.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,936.35 : 55,145.33 = 35,679.90 : x
  2. Step 2: Convert to fraction form
    39,936.35/55,145.33 = 35,679.90/x
  3. Step 3: Cross multiply
    39,936.35x = 55,145.33 × 35,679.90
  4. Step 4: Simplify right side
    39,936.35x = 1,967,579,949.07
  5. Step 5: Solve for x
    x = 1,967,579,949.07/39,936.35
  6. Step 6: Final answer
    x = 49,267.89

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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.