Home / 43,118.92-64,668.66-11,956.60

Finding the Fourth Proportional to 43,118.92, 64,668.66 and 11,956.60

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Solution

The fourth proportional to 43,118.92, 64,668.66 and 11,956.60 is: 17,932.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,118.92 : 64,668.66 = 11,956.60 : x
  2. Step 2: Convert to fraction form
    43,118.92/64,668.66 = 11,956.60/x
  3. Step 3: Cross multiply
    43,118.92x = 64,668.66 × 11,956.60
  4. Step 4: Simplify right side
    43,118.92x = 773,217,300.16
  5. Step 5: Solve for x
    x = 773,217,300.16/43,118.92
  6. Step 6: Final answer
    x = 17,932.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.