Finding the Fourth Proportional to 73,820.68, 101,872.51 and 40,286.68
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Solution
The fourth proportional to 73,820.68, 101,872.51 and 40,286.68 is: 55,595.60
Step by Step Solution
- Step 1: Write the proportion equation
73,820.68 : 101,872.51 = 40,286.68 : x - Step 2: Convert to fraction form
73,820.68/101,872.51 = 40,286.68/x - Step 3: Cross multiply
73,820.68x = 101,872.51 × 40,286.68 - Step 4: Simplify right side
73,820.68x = 4,104,105,211.17 - Step 5: Solve for x
x = 4,104,105,211.17/73,820.68 - Step 6: Final answer
x = 55,595.60
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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.