Finding the Fourth Proportional to 76,668.05, 114,965.69 and 26,742.08
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Solution
The fourth proportional to 76,668.05, 114,965.69 and 26,742.08 is: 40,100.42
Step by Step Solution
- Step 1: Write the proportion equation
76,668.05 : 114,965.69 = 26,742.08 : x - Step 2: Convert to fraction form
76,668.05/114,965.69 = 26,742.08/x - Step 3: Cross multiply
76,668.05x = 114,965.69 × 26,742.08 - Step 4: Simplify right side
76,668.05x = 3,074,420,970.70 - Step 5: Solve for x
x = 3,074,420,970.70/76,668.05 - Step 6: Final answer
x = 40,100.42
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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.