Home / 68,763.09-103,144.71-18,843.60

Finding the Fourth Proportional to 68,763.09, 103,144.71 and 18,843.60

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Solution

The fourth proportional to 68,763.09, 103,144.71 and 18,843.60 is: 28,265.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,763.09 : 103,144.71 = 18,843.60 : x
  2. Step 2: Convert to fraction form
    68,763.09/103,144.71 = 18,843.60/x
  3. Step 3: Cross multiply
    68,763.09x = 103,144.71 × 18,843.60
  4. Step 4: Simplify right side
    68,763.09x = 1,943,617,657.36
  5. Step 5: Solve for x
    x = 1,943,617,657.36/68,763.09
  6. Step 6: Final answer
    x = 28,265.42

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1.5x scale

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.