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Finding the Fourth Proportional to 73,398.15, 110,101.41 and 20,803.50

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Solution

The fourth proportional to 73,398.15, 110,101.41 and 20,803.50 is: 31,206.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,398.15 : 110,101.41 = 20,803.50 : x
  2. Step 2: Convert to fraction form
    73,398.15/110,101.41 = 20,803.50/x
  3. Step 3: Cross multiply
    73,398.15x = 110,101.41 × 20,803.50
  4. Step 4: Simplify right side
    73,398.15x = 2,290,494,682.94
  5. Step 5: Solve for x
    x = 2,290,494,682.94/73,398.15
  6. Step 6: Final answer
    x = 31,206.44

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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.