Home / 76,022.12-114,023.73-31,643.03

Finding the Fourth Proportional to 76,022.12, 114,023.73 and 31,643.03

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Solution

The fourth proportional to 76,022.12, 114,023.73 and 31,643.03 is: 47,460.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,022.12 : 114,023.73 = 31,643.03 : x
  2. Step 2: Convert to fraction form
    76,022.12/114,023.73 = 31,643.03/x
  3. Step 3: Cross multiply
    76,022.12x = 114,023.73 × 31,643.03
  4. Step 4: Simplify right side
    76,022.12x = 3,608,056,309.10
  5. Step 5: Solve for x
    x = 3,608,056,309.10/76,022.12
  6. Step 6: Final answer
    x = 47,460.61

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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.