Home / 81,821.39-112,922.07-50,011.49

Finding the Fourth Proportional to 81,821.39, 112,922.07 and 50,011.49

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Solution

The fourth proportional to 81,821.39, 112,922.07 and 50,011.49 is: 69,021.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,821.39 : 112,922.07 = 50,011.49 : x
  2. Step 2: Convert to fraction form
    81,821.39/112,922.07 = 50,011.49/x
  3. Step 3: Cross multiply
    81,821.39x = 112,922.07 × 50,011.49
  4. Step 4: Simplify right side
    81,821.39x = 5,647,400,974.58
  5. Step 5: Solve for x
    x = 5,647,400,974.58/81,821.39
  6. Step 6: Final answer
    x = 69,021.08

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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.