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Finding the Fourth Proportional to 74,193.88, 111,291 and 21,604.64

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Solution

The fourth proportional to 74,193.88, 111,291 and 21,604.64 is: 32,407.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,193.88 : 111,291 = 21,604.64 : x
  2. Step 2: Convert to fraction form
    74,193.88/111,291 = 21,604.64/x
  3. Step 3: Cross multiply
    74,193.88x = 111,291 × 21,604.64
  4. Step 4: Simplify right side
    74,193.88x = 2,404,401,990.24
  5. Step 5: Solve for x
    x = 2,404,401,990.24/74,193.88
  6. Step 6: Final answer
    x = 32,407.01

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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.