Home / 81,583.68-122,351.04-28,986.24

Finding the Fourth Proportional to 81,583.68, 122,351.04 and 28,986.24

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Solution

The fourth proportional to 81,583.68, 122,351.04 and 28,986.24 is: 43,470.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,583.68 : 122,351.04 = 28,986.24 : x
  2. Step 2: Convert to fraction form
    81,583.68/122,351.04 = 28,986.24/x
  3. Step 3: Cross multiply
    81,583.68x = 122,351.04 × 28,986.24
  4. Step 4: Simplify right side
    81,583.68x = 3,546,496,609.69
  5. Step 5: Solve for x
    x = 3,546,496,609.69/81,583.68
  6. Step 6: Final answer
    x = 43,470.66

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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.