Home / 76,338.98-114,391.70-40,805.36

Finding the Fourth Proportional to 76,338.98, 114,391.70 and 40,805.36

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Solution

The fourth proportional to 76,338.98, 114,391.70 and 40,805.36 is: 61,145.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,338.98 : 114,391.70 = 40,805.36 : x
  2. Step 2: Convert to fraction form
    76,338.98/114,391.70 = 40,805.36/x
  3. Step 3: Cross multiply
    76,338.98x = 114,391.70 × 40,805.36
  4. Step 4: Simplify right side
    76,338.98x = 4,667,794,305.52
  5. Step 5: Solve for x
    x = 4,667,794,305.52/76,338.98
  6. Step 6: Final answer
    x = 61,145.62

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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.