Home / 66,653.87-99,996.59-19,907.96

Finding the Fourth Proportional to 66,653.87, 99,996.59 and 19,907.96

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Solution

The fourth proportional to 66,653.87, 99,996.59 and 19,907.96 is: 29,866.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,653.87 : 99,996.59 = 19,907.96 : x
  2. Step 2: Convert to fraction form
    66,653.87/99,996.59 = 19,907.96/x
  3. Step 3: Cross multiply
    66,653.87x = 99,996.59 × 19,907.96
  4. Step 4: Simplify right side
    66,653.87x = 1,990,727,663.64
  5. Step 5: Solve for x
    x = 1,990,727,663.64/66,653.87
  6. Step 6: Final answer
    x = 29,866.65

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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.