Home / 68,721.44-103,010.20-28,763.32

Finding the Fourth Proportional to 68,721.44, 103,010.20 and 28,763.32

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Solution

The fourth proportional to 68,721.44, 103,010.20 and 28,763.32 is: 43,114.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,721.44 : 103,010.20 = 28,763.32 : x
  2. Step 2: Convert to fraction form
    68,721.44/103,010.20 = 28,763.32/x
  3. Step 3: Cross multiply
    68,721.44x = 103,010.20 × 28,763.32
  4. Step 4: Simplify right side
    68,721.44x = 2,962,915,345.86
  5. Step 5: Solve for x
    x = 2,962,915,345.86/68,721.44
  6. Step 6: Final answer
    x = 43,114.86

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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.