Finding the Fourth Proportional to 80,770.67, 121,156.05 and 36,345.53
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Solution
The fourth proportional to 80,770.67, 121,156.05 and 36,345.53 is: 54,518.31
Step by Step Solution
- Step 1: Write the proportion equation
80,770.67 : 121,156.05 = 36,345.53 : x - Step 2: Convert to fraction form
80,770.67/121,156.05 = 36,345.53/x - Step 3: Cross multiply
80,770.67x = 121,156.05 × 36,345.53 - Step 4: Simplify right side
80,770.67x = 4,403,480,982.48 - Step 5: Solve for x
x = 4,403,480,982.48/80,770.67 - Step 6: Final answer
x = 54,518.31
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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.