Home / 50,380.06-75,503.94-20,781.58

Finding the Fourth Proportional to 50,380.06, 75,503.94 and 20,781.58

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Solution

The fourth proportional to 50,380.06, 75,503.94 and 20,781.58 is: 31,145.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,380.06 : 75,503.94 = 20,781.58 : x
  2. Step 2: Convert to fraction form
    50,380.06/75,503.94 = 20,781.58/x
  3. Step 3: Cross multiply
    50,380.06x = 75,503.94 × 20,781.58
  4. Step 4: Simplify right side
    50,380.06x = 1,569,091,169.43
  5. Step 5: Solve for x
    x = 1,569,091,169.43/50,380.06
  6. Step 6: Final answer
    x = 31,145.08

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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.