Finding the Fourth Proportional to 76,428.87, 114,536.49 and 65,125.18
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Solution
The fourth proportional to 76,428.87, 114,536.49 and 65,125.18 is: 97,596.75
Step by Step Solution
- Step 1: Write the proportion equation
76,428.87 : 114,536.49 = 65,125.18 : x - Step 2: Convert to fraction form
76,428.87/114,536.49 = 65,125.18/x - Step 3: Cross multiply
76,428.87x = 114,536.49 × 65,125.18 - Step 4: Simplify right side
76,428.87x = 7,459,209,527.82 - Step 5: Solve for x
x = 7,459,209,527.82/76,428.87 - Step 6: Final answer
x = 97,596.75
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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.