Home / 66,476.69-99,732.35-19,729.56

Finding the Fourth Proportional to 66,476.69, 99,732.35 and 19,729.56

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Solution

The fourth proportional to 66,476.69, 99,732.35 and 19,729.56 is: 29,599.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,476.69 : 99,732.35 = 19,729.56 : x
  2. Step 2: Convert to fraction form
    66,476.69/99,732.35 = 19,729.56/x
  3. Step 3: Cross multiply
    66,476.69x = 99,732.35 × 19,729.56
  4. Step 4: Simplify right side
    66,476.69x = 1,967,675,383.27
  5. Step 5: Solve for x
    x = 1,967,675,383.27/66,476.69
  6. Step 6: Final answer
    x = 29,599.48

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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.