Finding the Fourth Proportional to 80,770.74, 121,115.42 and 47,047.62
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Solution
The fourth proportional to 80,770.74, 121,115.42 and 47,047.62 is: 70,547.73
Step by Step Solution
- Step 1: Write the proportion equation
80,770.74 : 121,115.42 = 47,047.62 : x - Step 2: Convert to fraction form
80,770.74/121,115.42 = 47,047.62/x - Step 3: Cross multiply
80,770.74x = 121,115.42 × 47,047.62 - Step 4: Simplify right side
80,770.74x = 5,698,192,256.30 - Step 5: Solve for x
x = 5,698,192,256.30/80,770.74 - Step 6: Final answer
x = 70,547.73
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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.