Finding the Fourth Proportional to 76,960.32, 115,323.68 and 57,146.08
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Solution
The fourth proportional to 76,960.32, 115,323.68 and 57,146.08 is: 85,632.39
Step by Step Solution
- Step 1: Write the proportion equation
76,960.32 : 115,323.68 = 57,146.08 : x - Step 2: Convert to fraction form
76,960.32/115,323.68 = 57,146.08/x - Step 3: Cross multiply
76,960.32x = 115,323.68 × 57,146.08 - Step 4: Simplify right side
76,960.32x = 6,590,296,243.17 - Step 5: Solve for x
x = 6,590,296,243.17/76,960.32 - Step 6: Final answer
x = 85,632.39
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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.