Home / 68,771.46-103,157.56-31,305.33

Finding the Fourth Proportional to 68,771.46, 103,157.56 and 31,305.33

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Solution

The fourth proportional to 68,771.46, 103,157.56 and 31,305.33 is: 46,958.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,771.46 : 103,157.56 = 31,305.33 : x
  2. Step 2: Convert to fraction form
    68,771.46/103,157.56 = 31,305.33/x
  3. Step 3: Cross multiply
    68,771.46x = 103,157.56 × 31,305.33
  4. Step 4: Simplify right side
    68,771.46x = 3,229,381,457.79
  5. Step 5: Solve for x
    x = 3,229,381,457.79/68,771.46
  6. Step 6: Final answer
    x = 46,958.16

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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.