Finding the Fourth Proportional to 76,986.36, 106,217.96 and 44,714.76
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Solution
The fourth proportional to 76,986.36, 106,217.96 and 44,714.76 is: 61,692.88
Step by Step Solution
- Step 1: Write the proportion equation
76,986.36 : 106,217.96 = 44,714.76 : x - Step 2: Convert to fraction form
76,986.36/106,217.96 = 44,714.76/x - Step 3: Cross multiply
76,986.36x = 106,217.96 × 44,714.76 - Step 4: Simplify right side
76,986.36x = 4,749,510,589.09 - Step 5: Solve for x
x = 4,749,510,589.09/76,986.36 - Step 6: Final answer
x = 61,692.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.