Finding the Fourth Proportional to 79,361.91, 109,511.46 and 47,529.99
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Solution
The fourth proportional to 79,361.91, 109,511.46 and 47,529.99 is: 65,586.61
Step by Step Solution
- Step 1: Write the proportion equation
79,361.91 : 109,511.46 = 47,529.99 : x - Step 2: Convert to fraction form
79,361.91/109,511.46 = 47,529.99/x - Step 3: Cross multiply
79,361.91x = 109,511.46 × 47,529.99 - Step 4: Simplify right side
79,361.91x = 5,205,078,598.69 - Step 5: Solve for x
x = 5,205,078,598.69/79,361.91 - Step 6: Final answer
x = 65,586.61
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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.