Home / 76,163.14-114,268.20-34,078.51

Finding the Fourth Proportional to 76,163.14, 114,268.20 and 34,078.51

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Solution

The fourth proportional to 76,163.14, 114,268.20 and 34,078.51 is: 51,128.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,163.14 : 114,268.20 = 34,078.51 : x
  2. Step 2: Convert to fraction form
    76,163.14/114,268.20 = 34,078.51/x
  3. Step 3: Cross multiply
    76,163.14x = 114,268.20 × 34,078.51
  4. Step 4: Simplify right side
    76,163.14x = 3,894,089,996.38
  5. Step 5: Solve for x
    x = 3,894,089,996.38/76,163.14
  6. Step 6: Final answer
    x = 51,128.28

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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.