Home / 68,976.60-103,289.22-45,531.48

Finding the Fourth Proportional to 68,976.60, 103,289.22 and 45,531.48

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Solution

The fourth proportional to 68,976.60, 103,289.22 and 45,531.48 is: 68,181.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,976.60 : 103,289.22 = 45,531.48 : x
  2. Step 2: Convert to fraction form
    68,976.60/103,289.22 = 45,531.48/x
  3. Step 3: Cross multiply
    68,976.60x = 103,289.22 × 45,531.48
  4. Step 4: Simplify right side
    68,976.60x = 4,702,911,054.65
  5. Step 5: Solve for x
    x = 4,702,911,054.65/68,976.60
  6. Step 6: Final answer
    x = 68,181.25

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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.