Home / 68,185.16-102,244.92-28,720.74

Finding the Fourth Proportional to 68,185.16, 102,244.92 and 28,720.74

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Solution

The fourth proportional to 68,185.16, 102,244.92 and 28,720.74 is: 43,067.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,185.16 : 102,244.92 = 28,720.74 : x
  2. Step 2: Convert to fraction form
    68,185.16/102,244.92 = 28,720.74/x
  3. Step 3: Cross multiply
    68,185.16x = 102,244.92 × 28,720.74
  4. Step 4: Simplify right side
    68,185.16x = 2,936,549,763.64
  5. Step 5: Solve for x
    x = 2,936,549,763.64/68,185.16
  6. Step 6: Final answer
    x = 43,067.29

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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.