Home / 51,399.84-77,082.48-18,118.56

Finding the Fourth Proportional to 51,399.84, 77,082.48 and 18,118.56

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Solution

The fourth proportional to 51,399.84, 77,082.48 and 18,118.56 is: 27,171.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,399.84 : 77,082.48 = 18,118.56 : x
  2. Step 2: Convert to fraction form
    51,399.84/77,082.48 = 18,118.56/x
  3. Step 3: Cross multiply
    51,399.84x = 77,082.48 × 18,118.56
  4. Step 4: Simplify right side
    51,399.84x = 1,396,623,538.83
  5. Step 5: Solve for x
    x = 1,396,623,538.83/51,399.84
  6. Step 6: Final answer
    x = 27,171.75

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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.