Home / 79,999.11-120,024.59-27,409.05

Finding the Fourth Proportional to 79,999.11, 120,024.59 and 27,409.05

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Solution

The fourth proportional to 79,999.11, 120,024.59 and 27,409.05 is: 41,122.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,999.11 : 120,024.59 = 27,409.05 : x
  2. Step 2: Convert to fraction form
    79,999.11/120,024.59 = 27,409.05/x
  3. Step 3: Cross multiply
    79,999.11x = 120,024.59 × 27,409.05
  4. Step 4: Simplify right side
    79,999.11x = 3,289,759,851.49
  5. Step 5: Solve for x
    x = 3,289,759,851.49/79,999.11
  6. Step 6: Final answer
    x = 41,122.46

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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.