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Finding the Fourth Proportional to 50,676, 69,937.20 and 28,324.32

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Solution

The fourth proportional to 50,676, 69,937.20 and 28,324.32 is: 39,089.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,676 : 69,937.20 = 28,324.32 : x
  2. Step 2: Convert to fraction form
    50,676/69,937.20 = 28,324.32/x
  3. Step 3: Cross multiply
    50,676x = 69,937.20 × 28,324.32
  4. Step 4: Simplify right side
    50,676x = 1,980,923,632.70
  5. Step 5: Solve for x
    x = 1,980,923,632.70/50,676
  6. Step 6: Final answer
    x = 39,089.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.