Home / 84,905.72-117,171.11-46,668.80

Finding the Fourth Proportional to 84,905.72, 117,171.11 and 46,668.80

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Solution

The fourth proportional to 84,905.72, 117,171.11 and 46,668.80 is: 64,403.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,905.72 : 117,171.11 = 46,668.80 : x
  2. Step 2: Convert to fraction form
    84,905.72/117,171.11 = 46,668.80/x
  3. Step 3: Cross multiply
    84,905.72x = 117,171.11 × 46,668.80
  4. Step 4: Simplify right side
    84,905.72x = 5,468,235,530.78
  5. Step 5: Solve for x
    x = 5,468,235,530.78/84,905.72
  6. Step 6: Final answer
    x = 64,403.62

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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.