Finding the Fourth Proportional to 74,318.91, 102,559.82 and 40,327.53
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Solution
The fourth proportional to 74,318.91, 102,559.82 and 40,327.53 is: 55,651.84
Step by Step Solution
- Step 1: Write the proportion equation
74,318.91 : 102,559.82 = 40,327.53 : x - Step 2: Convert to fraction form
74,318.91/102,559.82 = 40,327.53/x - Step 3: Cross multiply
74,318.91x = 102,559.82 × 40,327.53 - Step 4: Simplify right side
74,318.91x = 4,135,984,016.21 - Step 5: Solve for x
x = 4,135,984,016.21/74,318.91 - Step 6: Final answer
x = 55,651.84
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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.