Home / 76,743.19-105,905.46-44,918.11

Finding the Fourth Proportional to 76,743.19, 105,905.46 and 44,918.11

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Solution

The fourth proportional to 76,743.19, 105,905.46 and 44,918.11 is: 61,986.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,743.19 : 105,905.46 = 44,918.11 : x
  2. Step 2: Convert to fraction form
    76,743.19/105,905.46 = 44,918.11/x
  3. Step 3: Cross multiply
    76,743.19x = 105,905.46 × 44,918.11
  4. Step 4: Simplify right side
    76,743.19x = 4,757,073,101.88
  5. Step 5: Solve for x
    x = 4,757,073,101.88/76,743.19
  6. Step 6: Final answer
    x = 61,986.91

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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.