Finding the Fourth Proportional to 86,561.58, 119,454.48 and 48,318.91
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Solution
The fourth proportional to 86,561.58, 119,454.48 and 48,318.91 is: 66,679.82
Step by Step Solution
- Step 1: Write the proportion equation
86,561.58 : 119,454.48 = 48,318.91 : x - Step 2: Convert to fraction form
86,561.58/119,454.48 = 48,318.91/x - Step 3: Cross multiply
86,561.58x = 119,454.48 × 48,318.91 - Step 4: Simplify right side
86,561.58x = 5,771,910,268.22 - Step 5: Solve for x
x = 5,771,910,268.22/86,561.58 - Step 6: Final answer
x = 66,679.82
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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.