Home / 66,542-99,829.44-19,794.72

Finding the Fourth Proportional to 66,542, 99,829.44 and 19,794.72

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Solution

The fourth proportional to 66,542, 99,829.44 and 19,794.72 is: 29,696.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,542 : 99,829.44 = 19,794.72 : x
  2. Step 2: Convert to fraction form
    66,542/99,829.44 = 19,794.72/x
  3. Step 3: Cross multiply
    66,542x = 99,829.44 × 19,794.72
  4. Step 4: Simplify right side
    66,542x = 1,976,095,812.56
  5. Step 5: Solve for x
    x = 1,976,095,812.56/66,542
  6. Step 6: Final answer
    x = 29,696.97

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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.