Home / 81,691.62-112,736.94-45,882.36

Finding the Fourth Proportional to 81,691.62, 112,736.94 and 45,882.36

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Solution

The fourth proportional to 81,691.62, 112,736.94 and 45,882.36 is: 63,319.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,691.62 : 112,736.94 = 45,882.36 : x
  2. Step 2: Convert to fraction form
    81,691.62/112,736.94 = 45,882.36/x
  3. Step 3: Cross multiply
    81,691.62x = 112,736.94 × 45,882.36
  4. Step 4: Simplify right side
    81,691.62x = 5,172,636,866.38
  5. Step 5: Solve for x
    x = 5,172,636,866.38/81,691.62
  6. Step 6: Final answer
    x = 63,319.06

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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.