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Finding the Fourth Proportional to 79,999.36, 120,024.96 and 27,409.30

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Solution

The fourth proportional to 79,999.36, 120,024.96 and 27,409.30 is: 41,122.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,999.36 : 120,024.96 = 27,409.30 : x
  2. Step 2: Convert to fraction form
    79,999.36/120,024.96 = 27,409.30/x
  3. Step 3: Cross multiply
    79,999.36x = 120,024.96 × 27,409.30
  4. Step 4: Simplify right side
    79,999.36x = 3,289,800,136.13
  5. Step 5: Solve for x
    x = 3,289,800,136.13/79,999.36
  6. Step 6: Final answer
    x = 41,122.83

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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.