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Finding the Fourth Proportional to 79,901.70, 119,821.39 and 29,954.57

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Solution

The fourth proportional to 79,901.70, 119,821.39 and 29,954.57 is: 44,920.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,901.70 : 119,821.39 = 29,954.57 : x
  2. Step 2: Convert to fraction form
    79,901.70/119,821.39 = 29,954.57/x
  3. Step 3: Cross multiply
    79,901.70x = 119,821.39 × 29,954.57
  4. Step 4: Simplify right side
    79,901.70x = 3,589,197,615.15
  5. Step 5: Solve for x
    x = 3,589,197,615.15/79,901.70
  6. Step 6: Final answer
    x = 44,920.17

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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.