Finding the Fourth Proportional to 73,654.62, 101,643.27 and 40,120.62
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Solution
The fourth proportional to 73,654.62, 101,643.27 and 40,120.62 is: 55,366.40
Step by Step Solution
- Step 1: Write the proportion equation
73,654.62 : 101,643.27 = 40,120.62 : x - Step 2: Convert to fraction form
73,654.62/101,643.27 = 40,120.62/x - Step 3: Cross multiply
73,654.62x = 101,643.27 × 40,120.62 - Step 4: Simplify right side
73,654.62x = 4,077,991,011.23 - Step 5: Solve for x
x = 4,077,991,011.23/73,654.62 - Step 6: Final answer
x = 55,366.40
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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.