Home / 81,694.22-112,736.12-45,393.66

Finding the Fourth Proportional to 81,694.22, 112,736.12 and 45,393.66

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Solution

The fourth proportional to 81,694.22, 112,736.12 and 45,393.66 is: 62,642.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,694.22 : 112,736.12 = 45,393.66 : x
  2. Step 2: Convert to fraction form
    81,694.22/112,736.12 = 45,393.66/x
  3. Step 3: Cross multiply
    81,694.22x = 112,736.12 × 45,393.66
  4. Step 4: Simplify right side
    81,694.22x = 5,117,504,874.03
  5. Step 5: Solve for x
    x = 5,117,504,874.03/81,694.22
  6. Step 6: Final answer
    x = 62,642.19

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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.