Home / 66,804.14-100,182.55-19,409.36

Finding the Fourth Proportional to 66,804.14, 100,182.55 and 19,409.36

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Solution

The fourth proportional to 66,804.14, 100,182.55 and 19,409.36 is: 29,107.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,804.14 : 100,182.55 = 19,409.36 : x
  2. Step 2: Convert to fraction form
    66,804.14/100,182.55 = 19,409.36/x
  3. Step 3: Cross multiply
    66,804.14x = 100,182.55 × 19,409.36
  4. Step 4: Simplify right side
    66,804.14x = 1,944,479,178.67
  5. Step 5: Solve for x
    x = 1,944,479,178.67/66,804.14
  6. Step 6: Final answer
    x = 29,107.17

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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.