Finding the Fourth Proportional to 76,447.26, 114,715.96 and 29,102.18
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Solution
The fourth proportional to 76,447.26, 114,715.96 and 29,102.18 is: 43,670.42
Step by Step Solution
- Step 1: Write the proportion equation
76,447.26 : 114,715.96 = 29,102.18 : x - Step 2: Convert to fraction form
76,447.26/114,715.96 = 29,102.18/x - Step 3: Cross multiply
76,447.26x = 114,715.96 × 29,102.18 - Step 4: Simplify right side
76,447.26x = 3,338,483,870.46 - Step 5: Solve for x
x = 3,338,483,870.46/76,447.26 - Step 6: Final answer
x = 43,670.42
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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.