Finding the Fourth Proportional to 68,120.63, 102,179.76 and 30,654.19
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Solution
The fourth proportional to 68,120.63, 102,179.76 and 30,654.19 is: 45,980.75
Step by Step Solution
- Step 1: Write the proportion equation
68,120.63 : 102,179.76 = 30,654.19 : x - Step 2: Convert to fraction form
68,120.63/102,179.76 = 30,654.19/x - Step 3: Cross multiply
68,120.63x = 102,179.76 × 30,654.19 - Step 4: Simplify right side
68,120.63x = 3,132,237,777.19 - Step 5: Solve for x
x = 3,132,237,777.19/68,120.63 - Step 6: Final answer
x = 45,980.75
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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.