Home / 81,305.72-112,198.23-45,008.52

Finding the Fourth Proportional to 81,305.72, 112,198.23 and 45,008.52

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Solution

The fourth proportional to 81,305.72, 112,198.23 and 45,008.52 is: 62,109.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,305.72 : 112,198.23 = 45,008.52 : x
  2. Step 2: Convert to fraction form
    81,305.72/112,198.23 = 45,008.52/x
  3. Step 3: Cross multiply
    81,305.72x = 112,198.23 × 45,008.52
  4. Step 4: Simplify right side
    81,305.72x = 5,049,876,278.92
  5. Step 5: Solve for x
    x = 5,049,876,278.92/81,305.72
  6. Step 6: Final answer
    x = 62,109.73

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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.