Finding the Fourth Proportional to 74,505.75, 102,817.94 and 40,971.75
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Solution
The fourth proportional to 74,505.75, 102,817.94 and 40,971.75 is: 56,541.02
Step by Step Solution
- Step 1: Write the proportion equation
74,505.75 : 102,817.94 = 40,971.75 : x - Step 2: Convert to fraction form
74,505.75/102,817.94 = 40,971.75/x - Step 3: Cross multiply
74,505.75x = 102,817.94 × 40,971.75 - Step 4: Simplify right side
74,505.75x = 4,212,630,933.20 - Step 5: Solve for x
x = 4,212,630,933.20/74,505.75 - Step 6: Final answer
x = 56,541.02
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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.