Home / 76,739.64-115,125.84-37,318.97

Finding the Fourth Proportional to 76,739.64, 115,125.84 and 37,318.97

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Solution

The fourth proportional to 76,739.64, 115,125.84 and 37,318.97 is: 55,986.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,739.64 : 115,125.84 = 37,318.97 : x
  2. Step 2: Convert to fraction form
    76,739.64/115,125.84 = 37,318.97/x
  3. Step 3: Cross multiply
    76,739.64x = 115,125.84 × 37,318.97
  4. Step 4: Simplify right side
    76,739.64x = 4,296,377,193.56
  5. Step 5: Solve for x
    x = 4,296,377,193.56/76,739.64
  6. Step 6: Final answer
    x = 55,986.41

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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.