Home / 81,850.35-112,936.54-51,600.09

Finding the Fourth Proportional to 81,850.35, 112,936.54 and 51,600.09

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Solution

The fourth proportional to 81,850.35, 112,936.54 and 51,600.09 is: 71,197.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,850.35 : 112,936.54 = 51,600.09 : x
  2. Step 2: Convert to fraction form
    81,850.35/112,936.54 = 51,600.09/x
  3. Step 3: Cross multiply
    81,850.35x = 112,936.54 × 51,600.09
  4. Step 4: Simplify right side
    81,850.35x = 5,827,535,628.29
  5. Step 5: Solve for x
    x = 5,827,535,628.29/81,850.35
  6. Step 6: Final answer
    x = 71,197.44

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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.