Home / 50,143.32-75,206.34-20,542.68

Finding the Fourth Proportional to 50,143.32, 75,206.34 and 20,542.68

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Solution

The fourth proportional to 50,143.32, 75,206.34 and 20,542.68 is: 30,810.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,143.32 : 75,206.34 = 20,542.68 : x
  2. Step 2: Convert to fraction form
    50,143.32/75,206.34 = 20,542.68/x
  3. Step 3: Cross multiply
    50,143.32x = 75,206.34 × 20,542.68
  4. Step 4: Simplify right side
    50,143.32x = 1,544,939,776.59
  5. Step 5: Solve for x
    x = 1,544,939,776.59/50,143.32
  6. Step 6: Final answer
    x = 30,810.48

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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.