Home / 66,653.10-99,943.20-27,165.60

Finding the Fourth Proportional to 66,653.10, 99,943.20 and 27,165.60

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Solution

The fourth proportional to 66,653.10, 99,943.20 and 27,165.60 is: 40,733.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,653.10 : 99,943.20 = 27,165.60 : x
  2. Step 2: Convert to fraction form
    66,653.10/99,943.20 = 27,165.60/x
  3. Step 3: Cross multiply
    66,653.10x = 99,943.20 × 27,165.60
  4. Step 4: Simplify right side
    66,653.10x = 2,715,016,993.92
  5. Step 5: Solve for x
    x = 2,715,016,993.92/66,653.10
  6. Step 6: Final answer
    x = 40,733.54

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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.