Finding the Fourth Proportional to 76,672.26, 114,998.67 and 56,979.54
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Solution
The fourth proportional to 76,672.26, 114,998.67 and 56,979.54 is: 85,462.09
Step by Step Solution
- Step 1: Write the proportion equation
76,672.26 : 114,998.67 = 56,979.54 : x - Step 2: Convert to fraction form
76,672.26/114,998.67 = 56,979.54/x - Step 3: Cross multiply
76,672.26x = 114,998.67 × 56,979.54 - Step 4: Simplify right side
76,672.26x = 6,552,571,317.21 - Step 5: Solve for x
x = 6,552,571,317.21/76,672.26 - Step 6: Final answer
x = 85,462.09
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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.