Home / 50,348.32-75,531.48-20,750

Finding the Fourth Proportional to 50,348.32, 75,531.48 and 20,750

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Solution

The fourth proportional to 50,348.32, 75,531.48 and 20,750 is: 31,128.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,348.32 : 75,531.48 = 20,750 : x
  2. Step 2: Convert to fraction form
    50,348.32/75,531.48 = 20,750/x
  3. Step 3: Cross multiply
    50,348.32x = 75,531.48 × 20,750
  4. Step 4: Simplify right side
    50,348.32x = 1,567,278,210
  5. Step 5: Solve for x
    x = 1,567,278,210/50,348.32
  6. Step 6: Final answer
    x = 31,128.71

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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.