Home / 50,121.92-69,148.92-28,612.88

Finding the Fourth Proportional to 50,121.92, 69,148.92 and 28,612.88

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Solution

The fourth proportional to 50,121.92, 69,148.92 and 28,612.88 is: 39,474.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,121.92 : 69,148.92 = 28,612.88 : x
  2. Step 2: Convert to fraction form
    50,121.92/69,148.92 = 28,612.88/x
  3. Step 3: Cross multiply
    50,121.92x = 69,148.92 × 28,612.88
  4. Step 4: Simplify right side
    50,121.92x = 1,978,549,770.95
  5. Step 5: Solve for x
    x = 1,978,549,770.95/50,121.92
  6. Step 6: Final answer
    x = 39,474.74

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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.