Home / 49,548.80-68,387.78-31,640.70

Finding the Fourth Proportional to 49,548.80, 68,387.78 and 31,640.70

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Solution

The fourth proportional to 49,548.80, 68,387.78 and 31,640.70 is: 43,670.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,548.80 : 68,387.78 = 31,640.70 : x
  2. Step 2: Convert to fraction form
    49,548.80/68,387.78 = 31,640.70/x
  3. Step 3: Cross multiply
    49,548.80x = 68,387.78 × 31,640.70
  4. Step 4: Simplify right side
    49,548.80x = 2,163,837,230.65
  5. Step 5: Solve for x
    x = 2,163,837,230.65/49,548.80
  6. Step 6: Final answer
    x = 43,670.83

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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.