Finding the Fourth Proportional to 172,620.63, 258,971.67 and 54,291.96
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Solution
The fourth proportional to 172,620.63, 258,971.67 and 54,291.96 is: 81,450.75
Step by Step Solution
- Step 1: Write the proportion equation
172,620.63 : 258,971.67 = 54,291.96 : x - Step 2: Convert to fraction form
172,620.63/258,971.67 = 54,291.96/x - Step 3: Cross multiply
172,620.63x = 258,971.67 × 54,291.96 - Step 4: Simplify right side
172,620.63x = 14,060,079,548.77 - Step 5: Solve for x
x = 14,060,079,548.77/172,620.63 - Step 6: Final answer
x = 81,450.75
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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.