Finding the Fourth Proportional to 83,634.84, 115,414.83 and 45,909.09
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Solution
The fourth proportional to 83,634.84, 115,414.83 and 45,909.09 is: 63,353.86
Step by Step Solution
- Step 1: Write the proportion equation
83,634.84 : 115,414.83 = 45,909.09 : x - Step 2: Convert to fraction form
83,634.84/115,414.83 = 45,909.09/x - Step 3: Cross multiply
83,634.84x = 115,414.83 × 45,909.09 - Step 4: Simplify right side
83,634.84x = 5,298,589,817.80 - Step 5: Solve for x
x = 5,298,589,817.80/83,634.84 - Step 6: Final answer
x = 63,353.86
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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.