Home / 81,832.54-112,911.97-47,834.45

Finding the Fourth Proportional to 81,832.54, 112,911.97 and 47,834.45

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Solution

The fourth proportional to 81,832.54, 112,911.97 and 47,834.45 is: 66,001.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,832.54 : 112,911.97 = 47,834.45 : x
  2. Step 2: Convert to fraction form
    81,832.54/112,911.97 = 47,834.45/x
  3. Step 3: Cross multiply
    81,832.54x = 112,911.97 × 47,834.45
  4. Step 4: Simplify right side
    81,832.54x = 5,401,081,459.27
  5. Step 5: Solve for x
    x = 5,401,081,459.27/81,832.54
  6. Step 6: Final answer
    x = 66,001.64

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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.