Finding the Fourth Proportional to 76,766.80, 115,142.64 and 26,837.68
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Solution
The fourth proportional to 76,766.80, 115,142.64 and 26,837.68 is: 40,253.88
Step by Step Solution
- Step 1: Write the proportion equation
76,766.80 : 115,142.64 = 26,837.68 : x - Step 2: Convert to fraction form
76,766.80/115,142.64 = 26,837.68/x - Step 3: Cross multiply
76,766.80x = 115,142.64 × 26,837.68 - Step 4: Simplify right side
76,766.80x = 3,090,161,326.68 - Step 5: Solve for x
x = 3,090,161,326.68/76,766.80 - Step 6: Final answer
x = 40,253.88
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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.