Home / 43,177.14-64,764.66-13,191.30

Finding the Fourth Proportional to 43,177.14, 64,764.66 and 13,191.30

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Solution

The fourth proportional to 43,177.14, 64,764.66 and 13,191.30 is: 19,786.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,177.14 : 64,764.66 = 13,191.30 : x
  2. Step 2: Convert to fraction form
    43,177.14/64,764.66 = 13,191.30/x
  3. Step 3: Cross multiply
    43,177.14x = 64,764.66 × 13,191.30
  4. Step 4: Simplify right side
    43,177.14x = 854,330,059.46
  5. Step 5: Solve for x
    x = 854,330,059.46/43,177.14
  6. Step 6: Final answer
    x = 19,786.63

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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.