Home / 66,431.31-99,629.94-19,673.25

Finding the Fourth Proportional to 66,431.31, 99,629.94 and 19,673.25

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Solution

The fourth proportional to 66,431.31, 99,629.94 and 19,673.25 is: 29,504.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,431.31 : 99,629.94 = 19,673.25 : x
  2. Step 2: Convert to fraction form
    66,431.31/99,629.94 = 19,673.25/x
  3. Step 3: Cross multiply
    66,431.31x = 99,629.94 × 19,673.25
  4. Step 4: Simplify right side
    66,431.31x = 1,960,044,717.11
  5. Step 5: Solve for x
    x = 1,960,044,717.11/66,431.31
  6. Step 6: Final answer
    x = 29,504.83

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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.