Finding the Fourth Proportional to 86,451.54, 129,683.99 and 33,169.02
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Solution
The fourth proportional to 86,451.54, 129,683.99 and 33,169.02 is: 49,756.09
Step by Step Solution
- Step 1: Write the proportion equation
86,451.54 : 129,683.99 = 33,169.02 : x - Step 2: Convert to fraction form
86,451.54/129,683.99 = 33,169.02/x - Step 3: Cross multiply
86,451.54x = 129,683.99 × 33,169.02 - Step 4: Simplify right side
86,451.54x = 4,301,490,857.99 - Step 5: Solve for x
x = 4,301,490,857.99/86,451.54 - Step 6: Final answer
x = 49,756.09
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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.