Finding the Fourth Proportional to 86,021.70, 129,032.49 and 26,862.44
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Solution
The fourth proportional to 86,021.70, 129,032.49 and 26,862.44 is: 40,293.64
Step by Step Solution
- Step 1: Write the proportion equation
86,021.70 : 129,032.49 = 26,862.44 : x - Step 2: Convert to fraction form
86,021.70/129,032.49 = 26,862.44/x - Step 3: Cross multiply
86,021.70x = 129,032.49 × 26,862.44 - Step 4: Simplify right side
86,021.70x = 3,466,126,976.25 - Step 5: Solve for x
x = 3,466,126,976.25/86,021.70 - Step 6: Final answer
x = 40,293.64
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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.