Finding the Fourth Proportional to 74,615.76, 102,969.84 and 41,081.76
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Solution
The fourth proportional to 74,615.76, 102,969.84 and 41,081.76 is: 56,692.88
Step by Step Solution
- Step 1: Write the proportion equation
74,615.76 : 102,969.84 = 41,081.76 : x - Step 2: Convert to fraction form
74,615.76/102,969.84 = 41,081.76/x - Step 3: Cross multiply
74,615.76x = 102,969.84 × 41,081.76 - Step 4: Simplify right side
74,615.76x = 4,230,182,254.12 - Step 5: Solve for x
x = 4,230,182,254.12/74,615.76 - Step 6: Final answer
x = 56,692.88
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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.