Home / 86,982.92-120,034.40-51,175.24

Finding the Fourth Proportional to 86,982.92, 120,034.40 and 51,175.24

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Solution

The fourth proportional to 86,982.92, 120,034.40 and 51,175.24 is: 70,620.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,982.92 : 120,034.40 = 51,175.24 : x
  2. Step 2: Convert to fraction form
    86,982.92/120,034.40 = 51,175.24/x
  3. Step 3: Cross multiply
    86,982.92x = 120,034.40 × 51,175.24
  4. Step 4: Simplify right side
    86,982.92x = 6,142,789,228.26
  5. Step 5: Solve for x
    x = 6,142,789,228.26/86,982.92
  6. Step 6: Final answer
    x = 70,620.64

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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.