Home / 76,731.96-115,054.20-41,149.48

Finding the Fourth Proportional to 76,731.96, 115,054.20 and 41,149.48

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Solution

The fourth proportional to 76,731.96, 115,054.20 and 41,149.48 is: 61,700.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,731.96 : 115,054.20 = 41,149.48 : x
  2. Step 2: Convert to fraction form
    76,731.96/115,054.20 = 41,149.48/x
  3. Step 3: Cross multiply
    76,731.96x = 115,054.20 × 41,149.48
  4. Step 4: Simplify right side
    76,731.96x = 4,734,420,501.82
  5. Step 5: Solve for x
    x = 4,734,420,501.82/76,731.96
  6. Step 6: Final answer
    x = 61,700.76

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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.