Finding the Fourth Proportional to 74,327.62, 102,529.23 and 47,439.83
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Solution
The fourth proportional to 74,327.62, 102,529.23 and 47,439.83 is: 65,439.59
Step by Step Solution
- Step 1: Write the proportion equation
74,327.62 : 102,529.23 = 47,439.83 : x - Step 2: Convert to fraction form
74,327.62/102,529.23 = 47,439.83/x - Step 3: Cross multiply
74,327.62x = 102,529.23 × 47,439.83 - Step 4: Simplify right side
74,327.62x = 4,863,969,241.23 - Step 5: Solve for x
x = 4,863,969,241.23/74,327.62 - Step 6: Final answer
x = 65,439.59
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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.