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Finding the Fourth Proportional to 55,577.79, 83,369.31 and 18,137.79

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Solution

The fourth proportional to 55,577.79, 83,369.31 and 18,137.79 is: 27,207.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,577.79 : 83,369.31 = 18,137.79 : x
  2. Step 2: Convert to fraction form
    55,577.79/83,369.31 = 18,137.79/x
  3. Step 3: Cross multiply
    55,577.79x = 83,369.31 × 18,137.79
  4. Step 4: Simplify right side
    55,577.79x = 1,512,135,037.22
  5. Step 5: Solve for x
    x = 1,512,135,037.22/55,577.79
  6. Step 6: Final answer
    x = 27,207.54

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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.