Finding the Fourth Proportional to 86,966.84, 130,216.42 and 55,204.96
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Solution
The fourth proportional to 86,966.84, 130,216.42 and 55,204.96 is: 82,659.00
Step by Step Solution
- Step 1: Write the proportion equation
86,966.84 : 130,216.42 = 55,204.96 : x - Step 2: Convert to fraction form
86,966.84/130,216.42 = 55,204.96/x - Step 3: Cross multiply
86,966.84x = 130,216.42 × 55,204.96 - Step 4: Simplify right side
86,966.84x = 7,188,591,793.89 - Step 5: Solve for x
x = 7,188,591,793.89/86,966.84 - Step 6: Final answer
x = 82,659.00
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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.