Finding the Fourth Proportional to 91,761.36, 137,346.64 and 47,326.98
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Solution
The fourth proportional to 91,761.36, 137,346.64 and 47,326.98 is: 70,838.12
Step by Step Solution
- Step 1: Write the proportion equation
91,761.36 : 137,346.64 = 47,326.98 : x - Step 2: Convert to fraction form
91,761.36/137,346.64 = 47,326.98/x - Step 3: Cross multiply
91,761.36x = 137,346.64 × 47,326.98 - Step 4: Simplify right side
91,761.36x = 6,500,202,081.08 - Step 5: Solve for x
x = 6,500,202,081.08/91,761.36 - Step 6: Final answer
x = 70,838.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.