Home / 50,809.20-70,111.26-28,147.68

Finding the Fourth Proportional to 50,809.20, 70,111.26 and 28,147.68

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Solution

The fourth proportional to 50,809.20, 70,111.26 and 28,147.68 is: 38,840.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,809.20 : 70,111.26 = 28,147.68 : x
  2. Step 2: Convert to fraction form
    50,809.20/70,111.26 = 28,147.68/x
  3. Step 3: Cross multiply
    50,809.20x = 70,111.26 × 28,147.68
  4. Step 4: Simplify right side
    50,809.20x = 1,973,469,310.88
  5. Step 5: Solve for x
    x = 1,973,469,310.88/50,809.20
  6. Step 6: Final answer
    x = 38,840.79

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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.