Finding the Fourth Proportional to 86,659.83, 119,589.08 and 48,420.14
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Solution
The fourth proportional to 86,659.83, 119,589.08 and 48,420.14 is: 66,818.95
Step by Step Solution
- Step 1: Write the proportion equation
86,659.83 : 119,589.08 = 48,420.14 : x - Step 2: Convert to fraction form
86,659.83/119,589.08 = 48,420.14/x - Step 3: Cross multiply
86,659.83x = 119,589.08 × 48,420.14 - Step 4: Simplify right side
86,659.83x = 5,790,519,156.03 - Step 5: Solve for x
x = 5,790,519,156.03/86,659.83 - Step 6: Final answer
x = 66,818.95
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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.