Finding the Fourth Proportional to 84,380.79, 126,340.62 and 60,711.99
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Solution
The fourth proportional to 84,380.79, 126,340.62 and 60,711.99 is: 90,902.09
Step by Step Solution
- Step 1: Write the proportion equation
84,380.79 : 126,340.62 = 60,711.99 : x - Step 2: Convert to fraction form
84,380.79/126,340.62 = 60,711.99/x - Step 3: Cross multiply
84,380.79x = 126,340.62 × 60,711.99 - Step 4: Simplify right side
84,380.79x = 7,670,390,458.03 - Step 5: Solve for x
x = 7,670,390,458.03/84,380.79 - Step 6: Final answer
x = 90,902.09
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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.