Home / 68,853.07-103,279.60-22,138.75

Finding the Fourth Proportional to 68,853.07, 103,279.60 and 22,138.75

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Solution

The fourth proportional to 68,853.07, 103,279.60 and 22,138.75 is: 33,208.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,853.07 : 103,279.60 = 22,138.75 : x
  2. Step 2: Convert to fraction form
    68,853.07/103,279.60 = 22,138.75/x
  3. Step 3: Cross multiply
    68,853.07x = 103,279.60 × 22,138.75
  4. Step 4: Simplify right side
    68,853.07x = 2,286,481,244.50
  5. Step 5: Solve for x
    x = 2,286,481,244.50/68,853.07
  6. Step 6: Final answer
    x = 33,208.12

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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.