Finding the Fourth Proportional to 86,775.36, 119,706.84 and 58,431.84
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Solution
The fourth proportional to 86,775.36, 119,706.84 and 58,431.84 is: 80,606.88
Step by Step Solution
- Step 1: Write the proportion equation
86,775.36 : 119,706.84 = 58,431.84 : x - Step 2: Convert to fraction form
86,775.36/119,706.84 = 58,431.84/x - Step 3: Cross multiply
86,775.36x = 119,706.84 × 58,431.84 - Step 4: Simplify right side
86,775.36x = 6,994,690,921.79 - Step 5: Solve for x
x = 6,994,690,921.79/86,775.36 - Step 6: Final answer
x = 80,606.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.