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Finding the Fourth Proportional to 100,501.56, 150,785.10 and 50,555.88

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Solution

The fourth proportional to 100,501.56, 150,785.10 and 50,555.88 is: 75,850.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,501.56 : 150,785.10 = 50,555.88 : x
  2. Step 2: Convert to fraction form
    100,501.56/150,785.10 = 50,555.88/x
  3. Step 3: Cross multiply
    100,501.56x = 150,785.10 × 50,555.88
  4. Step 4: Simplify right side
    100,501.56x = 7,623,073,421.39
  5. Step 5: Solve for x
    x = 7,623,073,421.39/100,501.56
  6. Step 6: Final answer
    x = 75,850.30

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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.