Home / 86,982.20-120,033.41-51,174.52

Finding the Fourth Proportional to 86,982.20, 120,033.41 and 51,174.52

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Solution

The fourth proportional to 86,982.20, 120,033.41 and 51,174.52 is: 70,619.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,982.20 : 120,033.41 = 51,174.52 : x
  2. Step 2: Convert to fraction form
    86,982.20/120,033.41 = 51,174.52/x
  3. Step 3: Cross multiply
    86,982.20x = 120,033.41 × 51,174.52
  4. Step 4: Simplify right side
    86,982.20x = 6,142,651,584.76
  5. Step 5: Solve for x
    x = 6,142,651,584.76/86,982.20
  6. Step 6: Final answer
    x = 70,619.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.