Home / 76,179.46-114,287.42-31,781.54

Finding the Fourth Proportional to 76,179.46, 114,287.42 and 31,781.54

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Solution

The fourth proportional to 76,179.46, 114,287.42 and 31,781.54 is: 47,679.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,179.46 : 114,287.42 = 31,781.54 : x
  2. Step 2: Convert to fraction form
    76,179.46/114,287.42 = 31,781.54/x
  3. Step 3: Cross multiply
    76,179.46x = 114,287.42 × 31,781.54
  4. Step 4: Simplify right side
    76,179.46x = 3,632,230,210.23
  5. Step 5: Solve for x
    x = 3,632,230,210.23/76,179.46
  6. Step 6: Final answer
    x = 47,679.92

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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.