Home / 51,709.14-77,571-18,419.37

Finding the Fourth Proportional to 51,709.14, 77,571 and 18,419.37

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Solution

The fourth proportional to 51,709.14, 77,571 and 18,419.37 is: 27,631.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,709.14 : 77,571 = 18,419.37 : x
  2. Step 2: Convert to fraction form
    51,709.14/77,571 = 18,419.37/x
  3. Step 3: Cross multiply
    51,709.14x = 77,571 × 18,419.37
  4. Step 4: Simplify right side
    51,709.14x = 1,428,808,950.27
  5. Step 5: Solve for x
    x = 1,428,808,950.27/51,709.14
  6. Step 6: Final answer
    x = 27,631.65

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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.