Finding the Fourth Proportional to 86,227.02, 129,355.11 and 39,483.54
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Solution
The fourth proportional to 86,227.02, 129,355.11 and 39,483.54 is: 59,231.99
Step by Step Solution
- Step 1: Write the proportion equation
86,227.02 : 129,355.11 = 39,483.54 : x - Step 2: Convert to fraction form
86,227.02/129,355.11 = 39,483.54/x - Step 3: Cross multiply
86,227.02x = 129,355.11 × 39,483.54 - Step 4: Simplify right side
86,227.02x = 5,107,397,659.89 - Step 5: Solve for x
x = 5,107,397,659.89/86,227.02 - Step 6: Final answer
x = 59,231.99
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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.