Home / 66,782.07-100,157.39-19,384.65

Finding the Fourth Proportional to 66,782.07, 100,157.39 and 19,384.65

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Solution

The fourth proportional to 66,782.07, 100,157.39 and 19,384.65 is: 29,072.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,782.07 : 100,157.39 = 19,384.65 : x
  2. Step 2: Convert to fraction form
    66,782.07/100,157.39 = 19,384.65/x
  3. Step 3: Cross multiply
    66,782.07x = 100,157.39 × 19,384.65
  4. Step 4: Simplify right side
    66,782.07x = 1,941,515,853.14
  5. Step 5: Solve for x
    x = 1,941,515,853.14/66,782.07
  6. Step 6: Final answer
    x = 29,072.41

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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.