Finding the Fourth Proportional to 68,970.76, 103,369.57 and 29,481.44
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Solution
The fourth proportional to 68,970.76, 103,369.57 and 29,481.44 is: 44,185.15
Step by Step Solution
- Step 1: Write the proportion equation
68,970.76 : 103,369.57 = 29,481.44 : x - Step 2: Convert to fraction form
68,970.76/103,369.57 = 29,481.44/x - Step 3: Cross multiply
68,970.76x = 103,369.57 × 29,481.44 - Step 4: Simplify right side
68,970.76x = 3,047,483,185.23 - Step 5: Solve for x
x = 3,047,483,185.23/68,970.76 - Step 6: Final answer
x = 44,185.15
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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.