Finding the Fourth Proportional to 77,238.21, 106,563.96 and 43,241.70
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Solution
The fourth proportional to 77,238.21, 106,563.96 and 43,241.70 is: 59,659.68
Step by Step Solution
- Step 1: Write the proportion equation
77,238.21 : 106,563.96 = 43,241.70 : x - Step 2: Convert to fraction form
77,238.21/106,563.96 = 43,241.70/x - Step 3: Cross multiply
77,238.21x = 106,563.96 × 43,241.70 - Step 4: Simplify right side
77,238.21x = 4,608,006,789.13 - Step 5: Solve for x
x = 4,608,006,789.13/77,238.21 - Step 6: Final answer
x = 59,659.68
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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.