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Finding the Fourth Proportional to 73,859.82, 110,780.01 and 20,555.34

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Solution

The fourth proportional to 73,859.82, 110,780.01 and 20,555.34 is: 30,830.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,859.82 : 110,780.01 = 20,555.34 : x
  2. Step 2: Convert to fraction form
    73,859.82/110,780.01 = 20,555.34/x
  3. Step 3: Cross multiply
    73,859.82x = 110,780.01 × 20,555.34
  4. Step 4: Simplify right side
    73,859.82x = 2,277,120,770.75
  5. Step 5: Solve for x
    x = 2,277,120,770.75/73,859.82
  6. Step 6: Final answer
    x = 30,830.30

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1.5x scale

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.