Home / 50,790.20-76,055.70-40,422.20

Finding the Fourth Proportional to 50,790.20, 76,055.70 and 40,422.20

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Solution

The fourth proportional to 50,790.20, 76,055.70 and 40,422.20 is: 60,530.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,790.20 : 76,055.70 = 40,422.20 : x
  2. Step 2: Convert to fraction form
    50,790.20/76,055.70 = 40,422.20/x
  3. Step 3: Cross multiply
    50,790.20x = 76,055.70 × 40,422.20
  4. Step 4: Simplify right side
    50,790.20x = 3,074,338,716.54
  5. Step 5: Solve for x
    x = 3,074,338,716.54/50,790.20
  6. Step 6: Final answer
    x = 60,530.16

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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.