Finding the Fourth Proportional to 72,853.10, 109,203.09 and 33,377.75
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Solution
The fourth proportional to 72,853.10, 109,203.09 and 33,377.75 is: 50,031.54
Step by Step Solution
- Step 1: Write the proportion equation
72,853.10 : 109,203.09 = 33,377.75 : x - Step 2: Convert to fraction form
72,853.10/109,203.09 = 33,377.75/x - Step 3: Cross multiply
72,853.10x = 109,203.09 × 33,377.75 - Step 4: Simplify right side
72,853.10x = 3,644,952,891.23 - Step 5: Solve for x
x = 3,644,952,891.23/72,853.10 - Step 6: Final answer
x = 50,031.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.