Home / 81,006.35-111,783.44-50,790.38

Finding the Fourth Proportional to 81,006.35, 111,783.44 and 50,790.38

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Solution

The fourth proportional to 81,006.35, 111,783.44 and 50,790.38 is: 70,087.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,006.35 : 111,783.44 = 50,790.38 : x
  2. Step 2: Convert to fraction form
    81,006.35/111,783.44 = 50,790.38/x
  3. Step 3: Cross multiply
    81,006.35x = 111,783.44 × 50,790.38
  4. Step 4: Simplify right side
    81,006.35x = 5,677,522,963.37
  5. Step 5: Solve for x
    x = 5,677,522,963.37/81,006.35
  6. Step 6: Final answer
    x = 70,087.39

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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.