Home / 66,321.26-99,489.18-19,574.18

Finding the Fourth Proportional to 66,321.26, 99,489.18 and 19,574.18

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Solution

The fourth proportional to 66,321.26, 99,489.18 and 19,574.18 is: 29,363.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,321.26 : 99,489.18 = 19,574.18 : x
  2. Step 2: Convert to fraction form
    66,321.26/99,489.18 = 19,574.18/x
  3. Step 3: Cross multiply
    66,321.26x = 99,489.18 × 19,574.18
  4. Step 4: Simplify right side
    66,321.26x = 1,947,419,117.37
  5. Step 5: Solve for x
    x = 1,947,419,117.37/66,321.26
  6. Step 6: Final answer
    x = 29,363.42

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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.