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Finding the Fourth Proportional to 79,954.74, 119,910.21 and 30,030.97

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Solution

The fourth proportional to 79,954.74, 119,910.21 and 30,030.97 is: 45,038.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,954.74 : 119,910.21 = 30,030.97 : x
  2. Step 2: Convert to fraction form
    79,954.74/119,910.21 = 30,030.97/x
  3. Step 3: Cross multiply
    79,954.74x = 119,910.21 × 30,030.97
  4. Step 4: Simplify right side
    79,954.74x = 3,601,019,919.20
  5. Step 5: Solve for x
    x = 3,601,019,919.20/79,954.74
  6. Step 6: Final answer
    x = 45,038.23

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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.