Finding the Fourth Proportional to 86,195.49, 129,293.26 and 23,865.99
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Solution
The fourth proportional to 86,195.49, 129,293.26 and 23,865.99 is: 35,798.99
Step by Step Solution
- Step 1: Write the proportion equation
86,195.49 : 129,293.26 = 23,865.99 : x - Step 2: Convert to fraction form
86,195.49/129,293.26 = 23,865.99/x - Step 3: Cross multiply
86,195.49x = 129,293.26 × 23,865.99 - Step 4: Simplify right side
86,195.49x = 3,085,711,967.23 - Step 5: Solve for x
x = 3,085,711,967.23/86,195.49 - Step 6: Final answer
x = 35,798.99
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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.