Home / 68,629.20-102,742.20-51,176.40

Finding the Fourth Proportional to 68,629.20, 102,742.20 and 51,176.40

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Solution

The fourth proportional to 68,629.20, 102,742.20 and 51,176.40 is: 76,614.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,629.20 : 102,742.20 = 51,176.40 : x
  2. Step 2: Convert to fraction form
    68,629.20/102,742.20 = 51,176.40/x
  3. Step 3: Cross multiply
    68,629.20x = 102,742.20 × 51,176.40
  4. Step 4: Simplify right side
    68,629.20x = 5,257,975,924.08
  5. Step 5: Solve for x
    x = 5,257,975,924.08/68,629.20
  6. Step 6: Final answer
    x = 76,614.27

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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.