Finding the Fourth Proportional to 77,236.22, 106,580.79 and 43,238.96
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Solution
The fourth proportional to 77,236.22, 106,580.79 and 43,238.96 is: 59,666.86
Step by Step Solution
- Step 1: Write the proportion equation
77,236.22 : 106,580.79 = 43,238.96 : x - Step 2: Convert to fraction form
77,236.22/106,580.79 = 43,238.96/x - Step 3: Cross multiply
77,236.22x = 106,580.79 × 43,238.96 - Step 4: Simplify right side
77,236.22x = 4,608,442,515.58 - Step 5: Solve for x
x = 4,608,442,515.58/77,236.22 - Step 6: Final answer
x = 59,666.86
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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.