Home / 66,576.06-91,874.72-39,719.70

Finding the Fourth Proportional to 66,576.06, 91,874.72 and 39,719.70

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Solution

The fourth proportional to 66,576.06, 91,874.72 and 39,719.70 is: 54,813.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,576.06 : 91,874.72 = 39,719.70 : x
  2. Step 2: Convert to fraction form
    66,576.06/91,874.72 = 39,719.70/x
  3. Step 3: Cross multiply
    66,576.06x = 91,874.72 × 39,719.70
  4. Step 4: Simplify right side
    66,576.06x = 3,649,236,315.98
  5. Step 5: Solve for x
    x = 3,649,236,315.98/66,576.06
  6. Step 6: Final answer
    x = 54,813.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.