Home / 79,629.20-119,436.60-27,040.40

Finding the Fourth Proportional to 79,629.20, 119,436.60 and 27,040.40

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Solution

The fourth proportional to 79,629.20, 119,436.60 and 27,040.40 is: 40,558.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,629.20 : 119,436.60 = 27,040.40 : x
  2. Step 2: Convert to fraction form
    79,629.20/119,436.60 = 27,040.40/x
  3. Step 3: Cross multiply
    79,629.20x = 119,436.60 × 27,040.40
  4. Step 4: Simplify right side
    79,629.20x = 3,229,613,438.64
  5. Step 5: Solve for x
    x = 3,229,613,438.64/79,629.20
  6. Step 6: Final answer
    x = 40,558.16

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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.