Finding the Fourth Proportional to 76,682.06, 114,986.64 and 26,756.12
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Solution
The fourth proportional to 76,682.06, 114,986.64 and 26,756.12 is: 40,121.46
Step by Step Solution
- Step 1: Write the proportion equation
76,682.06 : 114,986.64 = 26,756.12 : x - Step 2: Convert to fraction form
76,682.06/114,986.64 = 26,756.12/x - Step 3: Cross multiply
76,682.06x = 114,986.64 × 26,756.12 - Step 4: Simplify right side
76,682.06x = 3,076,596,338.24 - Step 5: Solve for x
x = 3,076,596,338.24/76,682.06 - Step 6: Final answer
x = 40,121.46
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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.