Finding the Fourth Proportional to 74,370.75, 102,631.64 and 40,836.75
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Solution
The fourth proportional to 74,370.75, 102,631.64 and 40,836.75 is: 56,354.72
Step by Step Solution
- Step 1: Write the proportion equation
74,370.75 : 102,631.64 = 40,836.75 : x - Step 2: Convert to fraction form
74,370.75/102,631.64 = 40,836.75/x - Step 3: Cross multiply
74,370.75x = 102,631.64 × 40,836.75 - Step 4: Simplify right side
74,370.75x = 4,191,142,624.77 - Step 5: Solve for x
x = 4,191,142,624.77/74,370.75 - Step 6: Final answer
x = 56,354.72
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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.