Finding the Fourth Proportional to 86,508.18, 129,673.88 and 54,941.26
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Solution
The fourth proportional to 86,508.18, 129,673.88 and 54,941.26 is: 82,355.75
Step by Step Solution
- Step 1: Write the proportion equation
86,508.18 : 129,673.88 = 54,941.26 : x - Step 2: Convert to fraction form
86,508.18/129,673.88 = 54,941.26/x - Step 3: Cross multiply
86,508.18x = 129,673.88 × 54,941.26 - Step 4: Simplify right side
86,508.18x = 7,124,446,356.29 - Step 5: Solve for x
x = 7,124,446,356.29/86,508.18 - Step 6: Final answer
x = 82,355.75
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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.