Home / 68,975.60-103,287.72-45,530.48

Finding the Fourth Proportional to 68,975.60, 103,287.72 and 45,530.48

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Solution

The fourth proportional to 68,975.60, 103,287.72 and 45,530.48 is: 68,179.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,975.60 : 103,287.72 = 45,530.48 : x
  2. Step 2: Convert to fraction form
    68,975.60/103,287.72 = 45,530.48/x
  3. Step 3: Cross multiply
    68,975.60x = 103,287.72 × 45,530.48
  4. Step 4: Simplify right side
    68,975.60x = 4,702,739,469.71
  5. Step 5: Solve for x
    x = 4,702,739,469.71/68,975.60
  6. Step 6: Final answer
    x = 68,179.75

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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.