Home / 68,142.06-102,126.60-30,662.10

Finding the Fourth Proportional to 68,142.06, 102,126.60 and 30,662.10

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Solution

The fourth proportional to 68,142.06, 102,126.60 and 30,662.10 is: 45,954.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,142.06 : 102,126.60 = 30,662.10 : x
  2. Step 2: Convert to fraction form
    68,142.06/102,126.60 = 30,662.10/x
  3. Step 3: Cross multiply
    68,142.06x = 102,126.60 × 30,662.10
  4. Step 4: Simplify right side
    68,142.06x = 3,131,416,021.86
  5. Step 5: Solve for x
    x = 3,131,416,021.86/68,142.06
  6. Step 6: Final answer
    x = 45,954.23

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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.