Finding the Fourth Proportional to 81,645.22, 122,353.74 and 44,124.40
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Solution
The fourth proportional to 81,645.22, 122,353.74 and 44,124.40 is: 66,124.94
Step by Step Solution
- Step 1: Write the proportion equation
81,645.22 : 122,353.74 = 44,124.40 : x - Step 2: Convert to fraction form
81,645.22/122,353.74 = 44,124.40/x - Step 3: Cross multiply
81,645.22x = 122,353.74 × 44,124.40 - Step 4: Simplify right side
81,645.22x = 5,398,785,365.26 - Step 5: Solve for x
x = 5,398,785,365.26/81,645.22 - Step 6: Final answer
x = 66,124.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.