Home / 76,723.86-115,083.04-26,803.78

Finding the Fourth Proportional to 76,723.86, 115,083.04 and 26,803.78

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Solution

The fourth proportional to 76,723.86, 115,083.04 and 26,803.78 is: 40,204.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,723.86 : 115,083.04 = 26,803.78 : x
  2. Step 2: Convert to fraction form
    76,723.86/115,083.04 = 26,803.78/x
  3. Step 3: Cross multiply
    76,723.86x = 115,083.04 × 26,803.78
  4. Step 4: Simplify right side
    76,723.86x = 3,084,660,485.89
  5. Step 5: Solve for x
    x = 3,084,660,485.89/76,723.86
  6. Step 6: Final answer
    x = 40,204.71

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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.