Home / 66,586.41-99,878.60-19,839.29

Finding the Fourth Proportional to 66,586.41, 99,878.60 and 19,839.29

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Solution

The fourth proportional to 66,586.41, 99,878.60 and 19,839.29 is: 29,758.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,586.41 : 99,878.60 = 19,839.29 : x
  2. Step 2: Convert to fraction form
    66,586.41/99,878.60 = 19,839.29/x
  3. Step 3: Cross multiply
    66,586.41x = 99,878.60 × 19,839.29
  4. Step 4: Simplify right side
    66,586.41x = 1,981,519,911.60
  5. Step 5: Solve for x
    x = 1,981,519,911.60/66,586.41
  6. Step 6: Final answer
    x = 29,758.62

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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.