Home / 66,619.29-91,935.83-36,405.89

Finding the Fourth Proportional to 66,619.29, 91,935.83 and 36,405.89

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Solution

The fourth proportional to 66,619.29, 91,935.83 and 36,405.89 is: 50,240.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,619.29 : 91,935.83 = 36,405.89 : x
  2. Step 2: Convert to fraction form
    66,619.29/91,935.83 = 36,405.89/x
  3. Step 3: Cross multiply
    66,619.29x = 91,935.83 × 36,405.89
  4. Step 4: Simplify right side
    66,619.29x = 3,347,005,553.61
  5. Step 5: Solve for x
    x = 3,347,005,553.61/66,619.29
  6. Step 6: Final answer
    x = 50,240.78

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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.