Finding the Fourth Proportional to 86,448.21, 129,730.65 and 33,851.13
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Solution
The fourth proportional to 86,448.21, 129,730.65 and 33,851.13 is: 50,799.54
Step by Step Solution
- Step 1: Write the proportion equation
86,448.21 : 129,730.65 = 33,851.13 : x - Step 2: Convert to fraction form
86,448.21/129,730.65 = 33,851.13/x - Step 3: Cross multiply
86,448.21x = 129,730.65 × 33,851.13 - Step 4: Simplify right side
86,448.21x = 4,391,529,098.13 - Step 5: Solve for x
x = 4,391,529,098.13/86,448.21 - Step 6: Final answer
x = 50,799.54
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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.