Finding the Fourth Proportional to 74,418.75, 102,697.88 and 40,884.75
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Solution
The fourth proportional to 74,418.75, 102,697.88 and 40,884.75 is: 56,420.96
Step by Step Solution
- Step 1: Write the proportion equation
74,418.75 : 102,697.88 = 40,884.75 : x - Step 2: Convert to fraction form
74,418.75/102,697.88 = 40,884.75/x - Step 3: Cross multiply
74,418.75x = 102,697.88 × 40,884.75 - Step 4: Simplify right side
74,418.75x = 4,198,776,944.91 - Step 5: Solve for x
x = 4,198,776,944.91/74,418.75 - Step 6: Final answer
x = 56,420.96
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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.