Home / 76,964.10-115,388.55-41,943.30

Finding the Fourth Proportional to 76,964.10, 115,388.55 and 41,943.30

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Solution

The fourth proportional to 76,964.10, 115,388.55 and 41,943.30 is: 62,883.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,964.10 : 115,388.55 = 41,943.30 : x
  2. Step 2: Convert to fraction form
    76,964.10/115,388.55 = 41,943.30/x
  3. Step 3: Cross multiply
    76,964.10x = 115,388.55 × 41,943.30
  4. Step 4: Simplify right side
    76,964.10x = 4,839,776,569.22
  5. Step 5: Solve for x
    x = 4,839,776,569.22/76,964.10
  6. Step 6: Final answer
    x = 62,883.56

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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.