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Finding the Fourth Proportional to 68,129.48, 94,012.16 and 50,234.16

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Solution

The fourth proportional to 68,129.48, 94,012.16 and 50,234.16 is: 69,318.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,129.48 : 94,012.16 = 50,234.16 : x
  2. Step 2: Convert to fraction form
    68,129.48/94,012.16 = 50,234.16/x
  3. Step 3: Cross multiply
    68,129.48x = 94,012.16 × 50,234.16
  4. Step 4: Simplify right side
    68,129.48x = 4,722,621,887.39
  5. Step 5: Solve for x
    x = 4,722,621,887.39/68,129.48
  6. Step 6: Final answer
    x = 69,318.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.