Home / 68,719.44-103,007.21-28,761.32

Finding the Fourth Proportional to 68,719.44, 103,007.21 and 28,761.32

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Solution

The fourth proportional to 68,719.44, 103,007.21 and 28,761.32 is: 43,111.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,719.44 : 103,007.21 = 28,761.32 : x
  2. Step 2: Convert to fraction form
    68,719.44/103,007.21 = 28,761.32/x
  3. Step 3: Cross multiply
    68,719.44x = 103,007.21 × 28,761.32
  4. Step 4: Simplify right side
    68,719.44x = 2,962,623,329.12
  5. Step 5: Solve for x
    x = 2,962,623,329.12/68,719.44
  6. Step 6: Final answer
    x = 43,111.87

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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.