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Finding the Fourth Proportional to 57,954.96, 80,015.04 and 39,835.80

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Solution

The fourth proportional to 57,954.96, 80,015.04 and 39,835.80 is: 54,998.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,954.96 : 80,015.04 = 39,835.80 : x
  2. Step 2: Convert to fraction form
    57,954.96/80,015.04 = 39,835.80/x
  3. Step 3: Cross multiply
    57,954.96x = 80,015.04 × 39,835.80
  4. Step 4: Simplify right side
    57,954.96x = 3,187,463,130.43
  5. Step 5: Solve for x
    x = 3,187,463,130.43/57,954.96
  6. Step 6: Final answer
    x = 54,998.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.