Home / 68,449.20-102,629.40-28,995.60

Finding the Fourth Proportional to 68,449.20, 102,629.40 and 28,995.60

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Solution

The fourth proportional to 68,449.20, 102,629.40 and 28,995.60 is: 43,474.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,449.20 : 102,629.40 = 28,995.60 : x
  2. Step 2: Convert to fraction form
    68,449.20/102,629.40 = 28,995.60/x
  3. Step 3: Cross multiply
    68,449.20x = 102,629.40 × 28,995.60
  4. Step 4: Simplify right side
    68,449.20x = 2,975,801,030.64
  5. Step 5: Solve for x
    x = 2,975,801,030.64/68,449.20
  6. Step 6: Final answer
    x = 43,474.59

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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.