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Finding the Fourth Proportional to 50,469.65, 75,713.39 and 20,870.90

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Solution

The fourth proportional to 50,469.65, 75,713.39 and 20,870.90 is: 31,310.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,469.65 : 75,713.39 = 20,870.90 : x
  2. Step 2: Convert to fraction form
    50,469.65/75,713.39 = 20,870.90/x
  3. Step 3: Cross multiply
    50,469.65x = 75,713.39 × 20,870.90
  4. Step 4: Simplify right side
    50,469.65x = 1,580,206,108.43
  5. Step 5: Solve for x
    x = 1,580,206,108.43/50,469.65
  6. Step 6: Final answer
    x = 31,310.03

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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.