Home / 76,004.58-113,945.34-31,664.64

Finding the Fourth Proportional to 76,004.58, 113,945.34 and 31,664.64

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Solution

The fourth proportional to 76,004.58, 113,945.34 and 31,664.64 is: 47,471.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,004.58 : 113,945.34 = 31,664.64 : x
  2. Step 2: Convert to fraction form
    76,004.58/113,945.34 = 31,664.64/x
  3. Step 3: Cross multiply
    76,004.58x = 113,945.34 × 31,664.64
  4. Step 4: Simplify right side
    76,004.58x = 3,608,038,170.78
  5. Step 5: Solve for x
    x = 3,608,038,170.78/76,004.58
  6. Step 6: Final answer
    x = 47,471.33

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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.