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Finding the Fourth Proportional to 73,404.40, 110,106.60 and 18,000.40

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Solution

The fourth proportional to 73,404.40, 110,106.60 and 18,000.40 is: 27,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,404.40 : 110,106.60 = 18,000.40 : x
  2. Step 2: Convert to fraction form
    73,404.40/110,106.60 = 18,000.40/x
  3. Step 3: Cross multiply
    73,404.40x = 110,106.60 × 18,000.40
  4. Step 4: Simplify right side
    73,404.40x = 1,981,962,842.64
  5. Step 5: Solve for x
    x = 1,981,962,842.64/73,404.40
  6. Step 6: Final answer
    x = 27,000.60

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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.