Home / 50,581.30-75,905.81-20,999.16

Finding the Fourth Proportional to 50,581.30, 75,905.81 and 20,999.16

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Solution

The fourth proportional to 50,581.30, 75,905.81 and 20,999.16 is: 31,512.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,581.30 : 75,905.81 = 20,999.16 : x
  2. Step 2: Convert to fraction form
    50,581.30/75,905.81 = 20,999.16/x
  3. Step 3: Cross multiply
    50,581.30x = 75,905.81 × 20,999.16
  4. Step 4: Simplify right side
    50,581.30x = 1,593,958,249.12
  5. Step 5: Solve for x
    x = 1,593,958,249.12/50,581.30
  6. Step 6: Final answer
    x = 31,512.80

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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.