Finding the Fourth Proportional to 89,269.68, 133,902.84 and 21,802.80
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Solution
The fourth proportional to 89,269.68, 133,902.84 and 21,802.80 is: 32,703.79
Step by Step Solution
- Step 1: Write the proportion equation
89,269.68 : 133,902.84 = 21,802.80 : x - Step 2: Convert to fraction form
89,269.68/133,902.84 = 21,802.80/x - Step 3: Cross multiply
89,269.68x = 133,902.84 × 21,802.80 - Step 4: Simplify right side
89,269.68x = 2,919,456,839.95 - Step 5: Solve for x
x = 2,919,456,839.95/89,269.68 - Step 6: Final answer
x = 32,703.79
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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.