Home / 66,172.41-99,246.92-30,140.61

Finding the Fourth Proportional to 66,172.41, 99,246.92 and 30,140.61

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Solution

The fourth proportional to 66,172.41, 99,246.92 and 30,140.61 is: 45,205.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,172.41 : 99,246.92 = 30,140.61 : x
  2. Step 2: Convert to fraction form
    66,172.41/99,246.92 = 30,140.61/x
  3. Step 3: Cross multiply
    66,172.41x = 99,246.92 × 30,140.61
  4. Step 4: Simplify right side
    66,172.41x = 2,991,362,558.72
  5. Step 5: Solve for x
    x = 2,991,362,558.72/66,172.41
  6. Step 6: Final answer
    x = 45,205.59

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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.