Finding the Fourth Proportional to 76,792.80, 115,181.64 and 26,863.68
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Solution
The fourth proportional to 76,792.80, 115,181.64 and 26,863.68 is: 40,292.88
Step by Step Solution
- Step 1: Write the proportion equation
76,792.80 : 115,181.64 = 26,863.68 : x - Step 2: Convert to fraction form
76,792.80/115,181.64 = 26,863.68/x - Step 3: Cross multiply
76,792.80x = 115,181.64 × 26,863.68 - Step 4: Simplify right side
76,792.80x = 3,094,202,718.84 - Step 5: Solve for x
x = 3,094,202,718.84/76,792.80 - Step 6: Final answer
x = 40,292.88
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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.