Home / 57,914.80-86,872.20-18,475.90

Finding the Fourth Proportional to 57,914.80, 86,872.20 and 18,475.90

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Solution

The fourth proportional to 57,914.80, 86,872.20 and 18,475.90 is: 27,713.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,914.80 : 86,872.20 = 18,475.90 : x
  2. Step 2: Convert to fraction form
    57,914.80/86,872.20 = 18,475.90/x
  3. Step 3: Cross multiply
    57,914.80x = 86,872.20 × 18,475.90
  4. Step 4: Simplify right side
    57,914.80x = 1,605,042,079.98
  5. Step 5: Solve for x
    x = 1,605,042,079.98/57,914.80
  6. Step 6: Final answer
    x = 27,713.85

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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.