Home / 86,933.60-119,996.88-51,121.88

Finding the Fourth Proportional to 86,933.60, 119,996.88 and 51,121.88

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Solution

The fourth proportional to 86,933.60, 119,996.88 and 51,121.88 is: 70,564.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,933.60 : 119,996.88 = 51,121.88 : x
  2. Step 2: Convert to fraction form
    86,933.60/119,996.88 = 51,121.88/x
  3. Step 3: Cross multiply
    86,933.60x = 119,996.88 × 51,121.88
  4. Step 4: Simplify right side
    86,933.60x = 6,134,466,099.73
  5. Step 5: Solve for x
    x = 6,134,466,099.73/86,933.60
  6. Step 6: Final answer
    x = 70,564.96

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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.