Home / 50,805.45-76,131.65-45,268.71

Finding the Fourth Proportional to 50,805.45, 76,131.65 and 45,268.71

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Solution

The fourth proportional to 50,805.45, 76,131.65 and 45,268.71 is: 67,834.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,805.45 : 76,131.65 = 45,268.71 : x
  2. Step 2: Convert to fraction form
    50,805.45/76,131.65 = 45,268.71/x
  3. Step 3: Cross multiply
    50,805.45x = 76,131.65 × 45,268.71
  4. Step 4: Simplify right side
    50,805.45x = 3,446,381,359.33
  5. Step 5: Solve for x
    x = 3,446,381,359.33/50,805.45
  6. Step 6: Final answer
    x = 67,834.88

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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.