Home / 51,327.82-76,996.56-20,155.78

Finding the Fourth Proportional to 51,327.82, 76,996.56 and 20,155.78

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Solution

The fourth proportional to 51,327.82, 76,996.56 and 20,155.78 is: 30,235.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,327.82 : 76,996.56 = 20,155.78 : x
  2. Step 2: Convert to fraction form
    51,327.82/76,996.56 = 20,155.78/x
  3. Step 3: Cross multiply
    51,327.82x = 76,996.56 × 20,155.78
  4. Step 4: Simplify right side
    51,327.82x = 1,551,925,724.12
  5. Step 5: Solve for x
    x = 1,551,925,724.12/51,327.82
  6. Step 6: Final answer
    x = 30,235.57

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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.