Home / 51,164.96-76,813.68-40,143.20

Finding the Fourth Proportional to 51,164.96, 76,813.68 and 40,143.20

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Solution

The fourth proportional to 51,164.96, 76,813.68 and 40,143.20 is: 60,266.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,164.96 : 76,813.68 = 40,143.20 : x
  2. Step 2: Convert to fraction form
    51,164.96/76,813.68 = 40,143.20/x
  3. Step 3: Cross multiply
    51,164.96x = 76,813.68 × 40,143.20
  4. Step 4: Simplify right side
    51,164.96x = 3,083,546,918.98
  5. Step 5: Solve for x
    x = 3,083,546,918.98/51,164.96
  6. Step 6: Final answer
    x = 60,266.77

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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.