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Finding the Fourth Proportional to 79,944.51, 119,853.51 and 30,019.05

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Solution

The fourth proportional to 79,944.51, 119,853.51 and 30,019.05 is: 45,004.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,944.51 : 119,853.51 = 30,019.05 : x
  2. Step 2: Convert to fraction form
    79,944.51/119,853.51 = 30,019.05/x
  3. Step 3: Cross multiply
    79,944.51x = 119,853.51 × 30,019.05
  4. Step 4: Simplify right side
    79,944.51x = 3,597,888,209.73
  5. Step 5: Solve for x
    x = 3,597,888,209.73/79,944.51
  6. Step 6: Final answer
    x = 45,004.82

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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.