Finding the Fourth Proportional to 86,689.44, 119,633.76 and 48,962.88
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Solution
The fourth proportional to 86,689.44, 119,633.76 and 48,962.88 is: 67,570.09
Step by Step Solution
- Step 1: Write the proportion equation
86,689.44 : 119,633.76 = 48,962.88 : x - Step 2: Convert to fraction form
86,689.44/119,633.76 = 48,962.88/x - Step 3: Cross multiply
86,689.44x = 119,633.76 × 48,962.88 - Step 4: Simplify right side
86,689.44x = 5,857,613,434.83 - Step 5: Solve for x
x = 5,857,613,434.83/86,689.44 - Step 6: Final answer
x = 67,570.09
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1.5x scale
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.