Home / 51,571.70-77,342.55-19,974.72

Finding the Fourth Proportional to 51,571.70, 77,342.55 and 19,974.72

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Solution

The fourth proportional to 51,571.70, 77,342.55 and 19,974.72 is: 29,956.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,571.70 : 77,342.55 = 19,974.72 : x
  2. Step 2: Convert to fraction form
    51,571.70/77,342.55 = 19,974.72/x
  3. Step 3: Cross multiply
    51,571.70x = 77,342.55 × 19,974.72
  4. Step 4: Simplify right side
    51,571.70x = 1,544,895,499.91
  5. Step 5: Solve for x
    x = 1,544,895,499.91/51,571.70
  6. Step 6: Final answer
    x = 29,956.26

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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.