Home / 68,239.08-102,372.54-28,796.20

Finding the Fourth Proportional to 68,239.08, 102,372.54 and 28,796.20

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Solution

The fourth proportional to 68,239.08, 102,372.54 and 28,796.20 is: 43,200.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,239.08 : 102,372.54 = 28,796.20 : x
  2. Step 2: Convert to fraction form
    68,239.08/102,372.54 = 28,796.20/x
  3. Step 3: Cross multiply
    68,239.08x = 102,372.54 × 28,796.20
  4. Step 4: Simplify right side
    68,239.08x = 2,947,940,136.35
  5. Step 5: Solve for x
    x = 2,947,940,136.35/68,239.08
  6. Step 6: Final answer
    x = 43,200.17

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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.