Finding the Fourth Proportional to 86,994.15, 130,504.18 and 40,251.75
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Solution
The fourth proportional to 86,994.15, 130,504.18 and 40,251.75 is: 60,383.62
Step by Step Solution
- Step 1: Write the proportion equation
86,994.15 : 130,504.18 = 40,251.75 : x - Step 2: Convert to fraction form
86,994.15/130,504.18 = 40,251.75/x - Step 3: Cross multiply
86,994.15x = 130,504.18 × 40,251.75 - Step 4: Simplify right side
86,994.15x = 5,253,020,974.79 - Step 5: Solve for x
x = 5,253,020,974.79/86,994.15 - Step 6: Final answer
x = 60,383.62
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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.