Home / 66,078.45-99,133.07-19,334.97

Finding the Fourth Proportional to 66,078.45, 99,133.07 and 19,334.97

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Solution

The fourth proportional to 66,078.45, 99,133.07 and 19,334.97 is: 29,006.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,078.45 : 99,133.07 = 19,334.97 : x
  2. Step 2: Convert to fraction form
    66,078.45/99,133.07 = 19,334.97/x
  3. Step 3: Cross multiply
    66,078.45x = 99,133.07 × 19,334.97
  4. Step 4: Simplify right side
    66,078.45x = 1,916,734,837.78
  5. Step 5: Solve for x
    x = 1,916,734,837.78/66,078.45
  6. Step 6: Final answer
    x = 29,006.96

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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.