Finding the Fourth Proportional to 86,449.75, 129,696.50 and 24,120.25
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Solution
The fourth proportional to 86,449.75, 129,696.50 and 24,120.25 is: 36,186.48
Step by Step Solution
- Step 1: Write the proportion equation
86,449.75 : 129,696.50 = 24,120.25 : x - Step 2: Convert to fraction form
86,449.75/129,696.50 = 24,120.25/x - Step 3: Cross multiply
86,449.75x = 129,696.50 × 24,120.25 - Step 4: Simplify right side
86,449.75x = 3,128,312,004.13 - Step 5: Solve for x
x = 3,128,312,004.13/86,449.75 - Step 6: Final answer
x = 36,186.48
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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.