Home / 51,178.40-76,778.40-16,121.60

Finding the Fourth Proportional to 51,178.40, 76,778.40 and 16,121.60

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Solution

The fourth proportional to 51,178.40, 76,778.40 and 16,121.60 is: 24,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,178.40 : 76,778.40 = 16,121.60 : x
  2. Step 2: Convert to fraction form
    51,178.40/76,778.40 = 16,121.60/x
  3. Step 3: Cross multiply
    51,178.40x = 76,778.40 × 16,121.60
  4. Step 4: Simplify right side
    51,178.40x = 1,237,790,653.44
  5. Step 5: Solve for x
    x = 1,237,790,653.44/51,178.40
  6. Step 6: Final answer
    x = 24,185.80

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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.