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Finding the Fourth Proportional to 79,901.20, 119,820.64 and 29,954.07

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Solution

The fourth proportional to 79,901.20, 119,820.64 and 29,954.07 is: 44,919.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,901.20 : 119,820.64 = 29,954.07 : x
  2. Step 2: Convert to fraction form
    79,901.20/119,820.64 = 29,954.07/x
  3. Step 3: Cross multiply
    79,901.20x = 119,820.64 × 29,954.07
  4. Step 4: Simplify right side
    79,901.20x = 3,589,115,238.90
  5. Step 5: Solve for x
    x = 3,589,115,238.90/79,901.20
  6. Step 6: Final answer
    x = 44,919.42

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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.