Finding the Fourth Proportional to 84,040.80, 115,974.96 and 48,229.98
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Solution
The fourth proportional to 84,040.80, 115,974.96 and 48,229.98 is: 66,556.60
Step by Step Solution
- Step 1: Write the proportion equation
84,040.80 : 115,974.96 = 48,229.98 : x - Step 2: Convert to fraction form
84,040.80/115,974.96 = 48,229.98/x - Step 3: Cross multiply
84,040.80x = 115,974.96 × 48,229.98 - Step 4: Simplify right side
84,040.80x = 5,593,470,001.30 - Step 5: Solve for x
x = 5,593,470,001.30/84,040.80 - Step 6: Final answer
x = 66,556.60
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1.5x scale
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.