Home / 50,871.45-76,277.21-20,876.75

Finding the Fourth Proportional to 50,871.45, 76,277.21 and 20,876.75

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Solution

The fourth proportional to 50,871.45, 76,277.21 and 20,876.75 is: 31,302.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,871.45 : 76,277.21 = 20,876.75 : x
  2. Step 2: Convert to fraction form
    50,871.45/76,277.21 = 20,876.75/x
  3. Step 3: Cross multiply
    50,871.45x = 76,277.21 × 20,876.75
  4. Step 4: Simplify right side
    50,871.45x = 1,592,419,758.10
  5. Step 5: Solve for x
    x = 1,592,419,758.10/50,871.45
  6. Step 6: Final answer
    x = 31,302.82

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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.