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Finding the Fourth Proportional to 79,473.97, 119,211.06 and 20,309.70

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Solution

The fourth proportional to 79,473.97, 119,211.06 and 20,309.70 is: 30,464.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,473.97 : 119,211.06 = 20,309.70 : x
  2. Step 2: Convert to fraction form
    79,473.97/119,211.06 = 20,309.70/x
  3. Step 3: Cross multiply
    79,473.97x = 119,211.06 × 20,309.70
  4. Step 4: Simplify right side
    79,473.97x = 2,421,140,865.28
  5. Step 5: Solve for x
    x = 2,421,140,865.28/79,473.97
  6. Step 6: Final answer
    x = 30,464.58

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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.