Finding the Fourth Proportional to 86,543.18, 129,768.33 and 44,405.90
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Solution
The fourth proportional to 86,543.18, 129,768.33 and 44,405.90 is: 66,585.02
Step by Step Solution
- Step 1: Write the proportion equation
86,543.18 : 129,768.33 = 44,405.90 : x - Step 2: Convert to fraction form
86,543.18/129,768.33 = 44,405.90/x - Step 3: Cross multiply
86,543.18x = 129,768.33 × 44,405.90 - Step 4: Simplify right side
86,543.18x = 5,762,479,485.15 - Step 5: Solve for x
x = 5,762,479,485.15/86,543.18 - Step 6: Final answer
x = 66,585.02
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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.