Finding the Fourth Proportional to 86,518.32, 119,392.68 and 48,278.88
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Solution
The fourth proportional to 86,518.32, 119,392.68 and 48,278.88 is: 66,623.40
Step by Step Solution
- Step 1: Write the proportion equation
86,518.32 : 119,392.68 = 48,278.88 : x - Step 2: Convert to fraction form
86,518.32/119,392.68 = 48,278.88/x - Step 3: Cross multiply
86,518.32x = 119,392.68 × 48,278.88 - Step 4: Simplify right side
86,518.32x = 5,764,144,870.60 - Step 5: Solve for x
x = 5,764,144,870.60/86,518.32 - Step 6: Final answer
x = 66,623.40
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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.