Home / 75,661.98-104,382.54-43,378.62

Finding the Fourth Proportional to 75,661.98, 104,382.54 and 43,378.62

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Solution

The fourth proportional to 75,661.98, 104,382.54 and 43,378.62 is: 59,844.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,661.98 : 104,382.54 = 43,378.62 : x
  2. Step 2: Convert to fraction form
    75,661.98/104,382.54 = 43,378.62/x
  3. Step 3: Cross multiply
    75,661.98x = 104,382.54 × 43,378.62
  4. Step 4: Simplify right side
    75,661.98x = 4,527,970,537.29
  5. Step 5: Solve for x
    x = 4,527,970,537.29/75,661.98
  6. Step 6: Final answer
    x = 59,844.73

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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.