Home / 51,268.84-76,857.18-20,126.44

Finding the Fourth Proportional to 51,268.84, 76,857.18 and 20,126.44

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Solution

The fourth proportional to 51,268.84, 76,857.18 and 20,126.44 is: 30,171.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,268.84 : 76,857.18 = 20,126.44 : x
  2. Step 2: Convert to fraction form
    51,268.84/76,857.18 = 20,126.44/x
  3. Step 3: Cross multiply
    51,268.84x = 76,857.18 × 20,126.44
  4. Step 4: Simplify right side
    51,268.84x = 1,546,861,421.84
  5. Step 5: Solve for x
    x = 1,546,861,421.84/51,268.84
  6. Step 6: Final answer
    x = 30,171.57

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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.