Home / 36,705.80-54,912.90-31,829.60

Finding the Fourth Proportional to 36,705.80, 54,912.90 and 31,829.60

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Solution

The fourth proportional to 36,705.80, 54,912.90 and 31,829.60 is: 47,617.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,705.80 : 54,912.90 = 31,829.60 : x
  2. Step 2: Convert to fraction form
    36,705.80/54,912.90 = 31,829.60/x
  3. Step 3: Cross multiply
    36,705.80x = 54,912.90 × 31,829.60
  4. Step 4: Simplify right side
    36,705.80x = 1,747,855,641.84
  5. Step 5: Solve for x
    x = 1,747,855,641.84/36,705.80
  6. Step 6: Final answer
    x = 47,617.97

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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.