Finding the Fourth Proportional to 79,792.63, 110,113.16 and 45,806.65
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Solution
The fourth proportional to 79,792.63, 110,113.16 and 45,806.65 is: 63,212.79
Step by Step Solution
- Step 1: Write the proportion equation
79,792.63 : 110,113.16 = 45,806.65 : x - Step 2: Convert to fraction form
79,792.63/110,113.16 = 45,806.65/x - Step 3: Cross multiply
79,792.63x = 110,113.16 × 45,806.65 - Step 4: Simplify right side
79,792.63x = 5,043,914,476.20 - Step 5: Solve for x
x = 5,043,914,476.20/79,792.63 - Step 6: Final answer
x = 63,212.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.