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Finding the Fourth Proportional to 64,361.36, 88,821.09 and 36,066

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Solution

The fourth proportional to 64,361.36, 88,821.09 and 36,066 is: 49,772.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,361.36 : 88,821.09 = 36,066 : x
  2. Step 2: Convert to fraction form
    64,361.36/88,821.09 = 36,066/x
  3. Step 3: Cross multiply
    64,361.36x = 88,821.09 × 36,066
  4. Step 4: Simplify right side
    64,361.36x = 3,203,421,431.94
  5. Step 5: Solve for x
    x = 3,203,421,431.94/64,361.36
  6. Step 6: Final answer
    x = 49,772.43

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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.