Finding the Fourth Proportional to 73,180.73, 100,909.23 and 47,639.99
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Solution
The fourth proportional to 73,180.73, 100,909.23 and 47,639.99 is: 65,690.99
Step by Step Solution
- Step 1: Write the proportion equation
73,180.73 : 100,909.23 = 47,639.99 : x - Step 2: Convert to fraction form
73,180.73/100,909.23 = 47,639.99/x - Step 3: Cross multiply
73,180.73x = 100,909.23 × 47,639.99 - Step 4: Simplify right side
73,180.73x = 4,807,314,708.11 - Step 5: Solve for x
x = 4,807,314,708.11/73,180.73 - Step 6: Final answer
x = 65,690.99
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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.