Home / 68,292.03-102,453.09-20,907.48

Finding the Fourth Proportional to 68,292.03, 102,453.09 and 20,907.48

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Solution

The fourth proportional to 68,292.03, 102,453.09 and 20,907.48 is: 31,365.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,292.03 : 102,453.09 = 20,907.48 : x
  2. Step 2: Convert to fraction form
    68,292.03/102,453.09 = 20,907.48/x
  3. Step 3: Cross multiply
    68,292.03x = 102,453.09 × 20,907.48
  4. Step 4: Simplify right side
    68,292.03x = 2,142,035,930.11
  5. Step 5: Solve for x
    x = 2,142,035,930.11/68,292.03
  6. Step 6: Final answer
    x = 31,365.83

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1.5x scale

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.