Finding the Fourth Proportional to 97,669.70, 134,786.94 and 54,647.97
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Solution
The fourth proportional to 97,669.70, 134,786.94 and 54,647.97 is: 75,415.73
Step by Step Solution
- Step 1: Write the proportion equation
97,669.70 : 134,786.94 = 54,647.97 : x - Step 2: Convert to fraction form
97,669.70/134,786.94 = 54,647.97/x - Step 3: Cross multiply
97,669.70x = 134,786.94 × 54,647.97 - Step 4: Simplify right side
97,669.70x = 7,365,831,943.13 - Step 5: Solve for x
x = 7,365,831,943.13/97,669.70 - Step 6: Final answer
x = 75,415.73
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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.