Finding the Fourth Proportional to 91,251.32, 136,830.24 and 48,580.99
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Solution
The fourth proportional to 91,251.32, 136,830.24 and 48,580.99 is: 72,846.60
Step by Step Solution
- Step 1: Write the proportion equation
91,251.32 : 136,830.24 = 48,580.99 : x - Step 2: Convert to fraction form
91,251.32/136,830.24 = 48,580.99/x - Step 3: Cross multiply
91,251.32x = 136,830.24 × 48,580.99 - Step 4: Simplify right side
91,251.32x = 6,647,348,179.06 - Step 5: Solve for x
x = 6,647,348,179.06/91,251.32 - Step 6: Final answer
x = 72,846.60
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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.