Finding the Fourth Proportional to 73,135.75, 109,703.63 and 17,731.75
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Solution
The fourth proportional to 73,135.75, 109,703.63 and 17,731.75 is: 26,597.63
Step by Step Solution
- Step 1: Write the proportion equation
73,135.75 : 109,703.63 = 17,731.75 : x - Step 2: Convert to fraction form
73,135.75/109,703.63 = 17,731.75/x - Step 3: Cross multiply
73,135.75x = 109,703.63 × 17,731.75 - Step 4: Simplify right side
73,135.75x = 1,945,237,341.25 - Step 5: Solve for x
x = 1,945,237,341.25/73,135.75 - Step 6: Final answer
x = 26,597.63
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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.