Home / 76,944.31-115,361.16-36,395.34

Finding the Fourth Proportional to 76,944.31, 115,361.16 and 36,395.34

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Solution

The fourth proportional to 76,944.31, 115,361.16 and 36,395.34 is: 54,566.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,944.31 : 115,361.16 = 36,395.34 : x
  2. Step 2: Convert to fraction form
    76,944.31/115,361.16 = 36,395.34/x
  3. Step 3: Cross multiply
    76,944.31x = 115,361.16 × 36,395.34
  4. Step 4: Simplify right side
    76,944.31x = 4,198,608,276.63
  5. Step 5: Solve for x
    x = 4,198,608,276.63/76,944.31
  6. Step 6: Final answer
    x = 54,566.85

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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.