Finding the Fourth Proportional to 81,212.68, 121,737.23 and 33,853.99
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Solution
The fourth proportional to 81,212.68, 121,737.23 and 33,853.99 is: 50,746.89
Step by Step Solution
- Step 1: Write the proportion equation
81,212.68 : 121,737.23 = 33,853.99 : x - Step 2: Convert to fraction form
81,212.68/121,737.23 = 33,853.99/x - Step 3: Cross multiply
81,212.68x = 121,737.23 × 33,853.99 - Step 4: Simplify right side
81,212.68x = 4,121,290,358.36 - Step 5: Solve for x
x = 4,121,290,358.36/81,212.68 - Step 6: Final answer
x = 50,746.89
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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.