Home / 50,344.19-69,405.48-40,169.78

Finding the Fourth Proportional to 50,344.19, 69,405.48 and 40,169.78

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Solution

The fourth proportional to 50,344.19, 69,405.48 and 40,169.78 is: 55,378.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,344.19 : 69,405.48 = 40,169.78 : x
  2. Step 2: Convert to fraction form
    50,344.19/69,405.48 = 40,169.78/x
  3. Step 3: Cross multiply
    50,344.19x = 69,405.48 × 40,169.78
  4. Step 4: Simplify right side
    50,344.19x = 2,788,002,515.37
  5. Step 5: Solve for x
    x = 2,788,002,515.37/50,344.19
  6. Step 6: Final answer
    x = 55,378.84

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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.