Home / 68,518.06-102,794.82-21,132.11

Finding the Fourth Proportional to 68,518.06, 102,794.82 and 21,132.11

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Solution

The fourth proportional to 68,518.06, 102,794.82 and 21,132.11 is: 31,703.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,518.06 : 102,794.82 = 21,132.11 : x
  2. Step 2: Convert to fraction form
    68,518.06/102,794.82 = 21,132.11/x
  3. Step 3: Cross multiply
    68,518.06x = 102,794.82 × 21,132.11
  4. Step 4: Simplify right side
    68,518.06x = 2,172,271,162.06
  5. Step 5: Solve for x
    x = 2,172,271,162.06/68,518.06
  6. Step 6: Final answer
    x = 31,703.63

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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.