Home / 76,380.86-114,571.08-43,085.81

Finding the Fourth Proportional to 76,380.86, 114,571.08 and 43,085.81

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Solution

The fourth proportional to 76,380.86, 114,571.08 and 43,085.81 is: 64,628.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,380.86 : 114,571.08 = 43,085.81 : x
  2. Step 2: Convert to fraction form
    76,380.86/114,571.08 = 43,085.81/x
  3. Step 3: Cross multiply
    76,380.86x = 114,571.08 × 43,085.81
  4. Step 4: Simplify right side
    76,380.86x = 4,936,387,211.52
  5. Step 5: Solve for x
    x = 4,936,387,211.52/76,380.86
  6. Step 6: Final answer
    x = 64,628.59

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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.