Home / 50,872.45-76,278.70-20,877.75

Finding the Fourth Proportional to 50,872.45, 76,278.70 and 20,877.75

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Solution

The fourth proportional to 50,872.45, 76,278.70 and 20,877.75 is: 31,304.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,872.45 : 76,278.70 = 20,877.75 : x
  2. Step 2: Convert to fraction form
    50,872.45/76,278.70 = 20,877.75/x
  3. Step 3: Cross multiply
    50,872.45x = 76,278.70 × 20,877.75
  4. Step 4: Simplify right side
    50,872.45x = 1,592,527,628.93
  5. Step 5: Solve for x
    x = 1,592,527,628.93/50,872.45
  6. Step 6: Final answer
    x = 31,304.32

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1.5x scale

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.