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Finding the Fourth Proportional to 73,401.20, 110,101.80 and 35,979.20

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Solution

The fourth proportional to 73,401.20, 110,101.80 and 35,979.20 is: 53,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,401.20 : 110,101.80 = 35,979.20 : x
  2. Step 2: Convert to fraction form
    73,401.20/110,101.80 = 35,979.20/x
  3. Step 3: Cross multiply
    73,401.20x = 110,101.80 × 35,979.20
  4. Step 4: Simplify right side
    73,401.20x = 3,961,374,682.56
  5. Step 5: Solve for x
    x = 3,961,374,682.56/73,401.20
  6. Step 6: Final answer
    x = 53,968.80

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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.