Finding the Fourth Proportional to 81,585.57, 122,415.08 and 44,101.76
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Solution
The fourth proportional to 81,585.57, 122,415.08 and 44,101.76 is: 66,172.49
Step by Step Solution
- Step 1: Write the proportion equation
81,585.57 : 122,415.08 = 44,101.76 : x - Step 2: Convert to fraction form
81,585.57/122,415.08 = 44,101.76/x - Step 3: Cross multiply
81,585.57x = 122,415.08 × 44,101.76 - Step 4: Simplify right side
81,585.57x = 5,398,720,478.54 - Step 5: Solve for x
x = 5,398,720,478.54/81,585.57 - Step 6: Final answer
x = 66,172.49
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1.5x scale
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.