Home / 51,487.38-77,249.34-18,198.81

Finding the Fourth Proportional to 51,487.38, 77,249.34 and 18,198.81

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Solution

The fourth proportional to 51,487.38, 77,249.34 and 18,198.81 is: 27,304.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,487.38 : 77,249.34 = 18,198.81 : x
  2. Step 2: Convert to fraction form
    51,487.38/77,249.34 = 18,198.81/x
  3. Step 3: Cross multiply
    51,487.38x = 77,249.34 × 18,198.81
  4. Step 4: Simplify right side
    51,487.38x = 1,405,846,061.29
  5. Step 5: Solve for x
    x = 1,405,846,061.29/51,487.38
  6. Step 6: Final answer
    x = 27,304.67

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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.