Home / 50,871.24-76,278.16-20,877.20

Finding the Fourth Proportional to 50,871.24, 76,278.16 and 20,877.20

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Solution

The fourth proportional to 50,871.24, 76,278.16 and 20,877.20 is: 31,304.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,871.24 : 76,278.16 = 20,877.20 : x
  2. Step 2: Convert to fraction form
    50,871.24/76,278.16 = 20,877.20/x
  3. Step 3: Cross multiply
    50,871.24x = 76,278.16 × 20,877.20
  4. Step 4: Simplify right side
    50,871.24x = 1,592,474,401.95
  5. Step 5: Solve for x
    x = 1,592,474,401.95/50,871.24
  6. Step 6: Final answer
    x = 31,304.02

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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.