Finding the Fourth Proportional to 74,505.08, 102,814.98 and 40,971.08
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Solution
The fourth proportional to 74,505.08, 102,814.98 and 40,971.08 is: 56,538.97
Step by Step Solution
- Step 1: Write the proportion equation
74,505.08 : 102,814.98 = 40,971.08 : x - Step 2: Convert to fraction form
74,505.08/102,814.98 = 40,971.08/x - Step 3: Cross multiply
74,505.08x = 102,814.98 × 40,971.08 - Step 4: Simplify right side
74,505.08x = 4,212,440,770.78 - Step 5: Solve for x
x = 4,212,440,770.78/74,505.08 - Step 6: Final answer
x = 56,538.97
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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.