Finding the Fourth Proportional to 79,444.14, 109,633.82 and 43,634.99
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Solution
The fourth proportional to 79,444.14, 109,633.82 and 43,634.99 is: 60,216.78
Step by Step Solution
- Step 1: Write the proportion equation
79,444.14 : 109,633.82 = 43,634.99 : x - Step 2: Convert to fraction form
79,444.14/109,633.82 = 43,634.99/x - Step 3: Cross multiply
79,444.14x = 109,633.82 × 43,634.99 - Step 4: Simplify right side
79,444.14x = 4,783,870,639.36 - Step 5: Solve for x
x = 4,783,870,639.36/79,444.14 - Step 6: Final answer
x = 60,216.78
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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.