Finding the Fourth Proportional to 73,909.97, 101,996.21 and 40,375.97
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Solution
The fourth proportional to 73,909.97, 101,996.21 and 40,375.97 is: 55,719.09
Step by Step Solution
- Step 1: Write the proportion equation
73,909.97 : 101,996.21 = 40,375.97 : x - Step 2: Convert to fraction form
73,909.97/101,996.21 = 40,375.97/x - Step 3: Cross multiply
73,909.97x = 101,996.21 × 40,375.97 - Step 4: Simplify right side
73,909.97x = 4,118,195,888.52 - Step 5: Solve for x
x = 4,118,195,888.52/73,909.97 - Step 6: Final answer
x = 55,719.09
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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.