Home / 66,518.66-99,794.55-19,770.26

Finding the Fourth Proportional to 66,518.66, 99,794.55 and 19,770.26

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Solution

The fourth proportional to 66,518.66, 99,794.55 and 19,770.26 is: 29,660.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,518.66 : 99,794.55 = 19,770.26 : x
  2. Step 2: Convert to fraction form
    66,518.66/99,794.55 = 19,770.26/x
  3. Step 3: Cross multiply
    66,518.66x = 99,794.55 × 19,770.26
  4. Step 4: Simplify right side
    66,518.66x = 1,972,964,200.08
  5. Step 5: Solve for x
    x = 1,972,964,200.08/66,518.66
  6. Step 6: Final answer
    x = 29,660.31

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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.