Home / 68,774.10-103,175.99-21,388.26

Finding the Fourth Proportional to 68,774.10, 103,175.99 and 21,388.26

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Solution

The fourth proportional to 68,774.10, 103,175.99 and 21,388.26 is: 32,087.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,774.10 : 103,175.99 = 21,388.26 : x
  2. Step 2: Convert to fraction form
    68,774.10/103,175.99 = 21,388.26/x
  3. Step 3: Cross multiply
    68,774.10x = 103,175.99 × 21,388.26
  4. Step 4: Simplify right side
    68,774.10x = 2,206,754,899.88
  5. Step 5: Solve for x
    x = 2,206,754,899.88/68,774.10
  6. Step 6: Final answer
    x = 32,087.01

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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.