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Finding the Fourth Proportional to 79,993.50, 120,012.09 and 35,006.68

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Solution

The fourth proportional to 79,993.50, 120,012.09 and 35,006.68 is: 52,519.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,993.50 : 120,012.09 = 35,006.68 : x
  2. Step 2: Convert to fraction form
    79,993.50/120,012.09 = 35,006.68/x
  3. Step 3: Cross multiply
    79,993.50x = 120,012.09 × 35,006.68
  4. Step 4: Simplify right side
    79,993.50x = 4,201,224,830.76
  5. Step 5: Solve for x
    x = 4,201,224,830.76/79,993.50
  6. Step 6: Final answer
    x = 52,519.58

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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.