Home / 81,313.38-112,215.96-50,275.44

Finding the Fourth Proportional to 81,313.38, 112,215.96 and 50,275.44

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Solution

The fourth proportional to 81,313.38, 112,215.96 and 50,275.44 is: 69,382.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,313.38 : 112,215.96 = 50,275.44 : x
  2. Step 2: Convert to fraction form
    81,313.38/112,215.96 = 50,275.44/x
  3. Step 3: Cross multiply
    81,313.38x = 112,215.96 × 50,275.44
  4. Step 4: Simplify right side
    81,313.38x = 5,641,706,764.02
  5. Step 5: Solve for x
    x = 5,641,706,764.02/81,313.38
  6. Step 6: Final answer
    x = 69,382.27

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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.