Home / 69,415.92-104,142.32-36,126.14

Finding the Fourth Proportional to 69,415.92, 104,142.32 and 36,126.14

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Solution

The fourth proportional to 69,415.92, 104,142.32 and 36,126.14 is: 54,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,415.92 : 104,142.32 = 36,126.14 : x
  2. Step 2: Convert to fraction form
    69,415.92/104,142.32 = 36,126.14/x
  3. Step 3: Cross multiply
    69,415.92x = 104,142.32 × 36,126.14
  4. Step 4: Simplify right side
    69,415.92x = 3,762,259,330.90
  5. Step 5: Solve for x
    x = 3,762,259,330.90/69,415.92
  6. Step 6: Final answer
    x = 54,198.80

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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.