Home / 81,195.16-112,067.40-49,357.32

Finding the Fourth Proportional to 81,195.16, 112,067.40 and 49,357.32

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Solution

The fourth proportional to 81,195.16, 112,067.40 and 49,357.32 is: 68,124.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,195.16 : 112,067.40 = 49,357.32 : x
  2. Step 2: Convert to fraction form
    81,195.16/112,067.40 = 49,357.32/x
  3. Step 3: Cross multiply
    81,195.16x = 112,067.40 × 49,357.32
  4. Step 4: Simplify right side
    81,195.16x = 5,531,346,523.37
  5. Step 5: Solve for x
    x = 5,531,346,523.37/81,195.16
  6. Step 6: Final answer
    x = 68,124.09

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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.