Home / 50,031.28-75,067.60-21,936.80

Finding the Fourth Proportional to 50,031.28, 75,067.60 and 21,936.80

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Solution

The fourth proportional to 50,031.28, 75,067.60 and 21,936.80 is: 32,914.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,031.28 : 75,067.60 = 21,936.80 : x
  2. Step 2: Convert to fraction form
    50,031.28/75,067.60 = 21,936.80/x
  3. Step 3: Cross multiply
    50,031.28x = 75,067.60 × 21,936.80
  4. Step 4: Simplify right side
    50,031.28x = 1,646,742,927.68
  5. Step 5: Solve for x
    x = 1,646,742,927.68/50,031.28
  6. Step 6: Final answer
    x = 32,914.27

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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.