Finding the Fourth Proportional to 73,820.31, 101,871.99 and 40,286.31
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Solution
The fourth proportional to 73,820.31, 101,871.99 and 40,286.31 is: 55,595.08
Step by Step Solution
- Step 1: Write the proportion equation
73,820.31 : 101,871.99 = 40,286.31 : x - Step 2: Convert to fraction form
73,820.31/101,871.99 = 40,286.31/x - Step 3: Cross multiply
73,820.31x = 101,871.99 × 40,286.31 - Step 4: Simplify right side
73,820.31x = 4,104,046,187.44 - Step 5: Solve for x
x = 4,104,046,187.44/73,820.31 - Step 6: Final answer
x = 55,595.08
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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.