Finding the Fourth Proportional to 79,813.52, 110,138.12 and 45,814.79
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Solution
The fourth proportional to 79,813.52, 110,138.12 and 45,814.79 is: 63,221.80
Step by Step Solution
- Step 1: Write the proportion equation
79,813.52 : 110,138.12 = 45,814.79 : x - Step 2: Convert to fraction form
79,813.52/110,138.12 = 45,814.79/x - Step 3: Cross multiply
79,813.52x = 110,138.12 × 45,814.79 - Step 4: Simplify right side
79,813.52x = 5,045,954,059.03 - Step 5: Solve for x
x = 5,045,954,059.03/79,813.52 - Step 6: Final answer
x = 63,221.80
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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.