Home / 79,824.40-119,736.60-40,458.40

Finding the Fourth Proportional to 79,824.40, 119,736.60 and 40,458.40

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Solution

The fourth proportional to 79,824.40, 119,736.60 and 40,458.40 is: 60,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,824.40 : 119,736.60 = 40,458.40 : x
  2. Step 2: Convert to fraction form
    79,824.40/119,736.60 = 40,458.40/x
  3. Step 3: Cross multiply
    79,824.40x = 119,736.60 × 40,458.40
  4. Step 4: Simplify right side
    79,824.40x = 4,844,351,257.44
  5. Step 5: Solve for x
    x = 4,844,351,257.44/79,824.40
  6. Step 6: Final answer
    x = 60,687.60

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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.