Home / 50,169.78-69,218.55-31,317.84

Finding the Fourth Proportional to 50,169.78, 69,218.55 and 31,317.84

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Solution

The fourth proportional to 50,169.78, 69,218.55 and 31,317.84 is: 43,208.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,169.78 : 69,218.55 = 31,317.84 : x
  2. Step 2: Convert to fraction form
    50,169.78/69,218.55 = 31,317.84/x
  3. Step 3: Cross multiply
    50,169.78x = 69,218.55 × 31,317.84
  4. Step 4: Simplify right side
    50,169.78x = 2,167,775,473.93
  5. Step 5: Solve for x
    x = 2,167,775,473.93/50,169.78
  6. Step 6: Final answer
    x = 43,208.79

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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.