Finding the Fourth Proportional to 86,128.23, 129,192.35 and 26,968.53
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Solution
The fourth proportional to 86,128.23, 129,192.35 and 26,968.53 is: 40,452.80
Step by Step Solution
- Step 1: Write the proportion equation
86,128.23 : 129,192.35 = 26,968.53 : x - Step 2: Convert to fraction form
86,128.23/129,192.35 = 26,968.53/x - Step 3: Cross multiply
86,128.23x = 129,192.35 × 26,968.53 - Step 4: Simplify right side
86,128.23x = 3,484,127,766.75 - Step 5: Solve for x
x = 3,484,127,766.75/86,128.23 - Step 6: Final answer
x = 40,452.80
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Similar ratio
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1.5x scale
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.