Home / 61,072.46-91,621.85-18,951.65

Finding the Fourth Proportional to 61,072.46, 91,621.85 and 18,951.65

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Solution

The fourth proportional to 61,072.46, 91,621.85 and 18,951.65 is: 28,431.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,072.46 : 91,621.85 = 18,951.65 : x
  2. Step 2: Convert to fraction form
    61,072.46/91,621.85 = 18,951.65/x
  3. Step 3: Cross multiply
    61,072.46x = 91,621.85 × 18,951.65
  4. Step 4: Simplify right side
    61,072.46x = 1,736,384,680.69
  5. Step 5: Solve for x
    x = 1,736,384,680.69/61,072.46
  6. Step 6: Final answer
    x = 28,431.55

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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.