Home / 69,186.81-103,782.94-19,271.26

Finding the Fourth Proportional to 69,186.81, 103,782.94 and 19,271.26

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Solution

The fourth proportional to 69,186.81, 103,782.94 and 19,271.26 is: 28,907.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,186.81 : 103,782.94 = 19,271.26 : x
  2. Step 2: Convert to fraction form
    69,186.81/103,782.94 = 19,271.26/x
  3. Step 3: Cross multiply
    69,186.81x = 103,782.94 × 19,271.26
  4. Step 4: Simplify right side
    69,186.81x = 2,000,028,279.76
  5. Step 5: Solve for x
    x = 2,000,028,279.76/69,186.81
  6. Step 6: Final answer
    x = 28,907.65

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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.