Home / 82,018.43-112,447.26-80,523.76

Finding the Fourth Proportional to 82,018.43, 112,447.26 and 80,523.76

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Solution

The fourth proportional to 82,018.43, 112,447.26 and 80,523.76 is: 110,398.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,018.43 : 112,447.26 = 80,523.76 : x
  2. Step 2: Convert to fraction form
    82,018.43/112,447.26 = 80,523.76/x
  3. Step 3: Cross multiply
    82,018.43x = 112,447.26 × 80,523.76
  4. Step 4: Simplify right side
    82,018.43x = 9,054,675,614.66
  5. Step 5: Solve for x
    x = 9,054,675,614.66/82,018.43
  6. Step 6: Final answer
    x = 110,398.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.