Home / 68,853.08-103,279.62-22,138.76

Finding the Fourth Proportional to 68,853.08, 103,279.62 and 22,138.76

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Solution

The fourth proportional to 68,853.08, 103,279.62 and 22,138.76 is: 33,208.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,853.08 : 103,279.62 = 22,138.76 : x
  2. Step 2: Convert to fraction form
    68,853.08/103,279.62 = 22,138.76/x
  3. Step 3: Cross multiply
    68,853.08x = 103,279.62 × 22,138.76
  4. Step 4: Simplify right side
    68,853.08x = 2,286,482,720.07
  5. Step 5: Solve for x
    x = 2,286,482,720.07/68,853.08
  6. Step 6: Final answer
    x = 33,208.14

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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.