Home / 68,270.21-102,405.16-18,350.30

Finding the Fourth Proportional to 68,270.21, 102,405.16 and 18,350.30

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Solution

The fourth proportional to 68,270.21, 102,405.16 and 18,350.30 is: 27,525.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,270.21 : 102,405.16 = 18,350.30 : x
  2. Step 2: Convert to fraction form
    68,270.21/102,405.16 = 18,350.30/x
  3. Step 3: Cross multiply
    68,270.21x = 102,405.16 × 18,350.30
  4. Step 4: Simplify right side
    68,270.21x = 1,879,165,686.50
  5. Step 5: Solve for x
    x = 1,879,165,686.50/68,270.21
  6. Step 6: Final answer
    x = 27,525.41

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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.