Home / 50,642.40-69,888.24-31,789.92

Finding the Fourth Proportional to 50,642.40, 69,888.24 and 31,789.92

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Solution

The fourth proportional to 50,642.40, 69,888.24 and 31,789.92 is: 43,871.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,642.40 : 69,888.24 = 31,789.92 : x
  2. Step 2: Convert to fraction form
    50,642.40/69,888.24 = 31,789.92/x
  3. Step 3: Cross multiply
    50,642.40x = 69,888.24 × 31,789.92
  4. Step 4: Simplify right side
    50,642.40x = 2,221,741,558.54
  5. Step 5: Solve for x
    x = 2,221,741,558.54/50,642.40
  6. Step 6: Final answer
    x = 43,871.17

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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.