Finding the Fourth Proportional to 74,812.75, 112,218.99 and 43,626.13
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Solution
The fourth proportional to 74,812.75, 112,218.99 and 43,626.13 is: 65,439.12
Step by Step Solution
- Step 1: Write the proportion equation
74,812.75 : 112,218.99 = 43,626.13 : x - Step 2: Convert to fraction form
74,812.75/112,218.99 = 43,626.13/x - Step 3: Cross multiply
74,812.75x = 112,218.99 × 43,626.13 - Step 4: Simplify right side
74,812.75x = 4,895,680,246.21 - Step 5: Solve for x
x = 4,895,680,246.21/74,812.75 - Step 6: Final answer
x = 65,439.12
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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.