Finding the Fourth Proportional to 86,581.14, 119,484.36 and 48,339.22
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Solution
The fourth proportional to 86,581.14, 119,484.36 and 48,339.22 is: 66,709.45
Step by Step Solution
- Step 1: Write the proportion equation
86,581.14 : 119,484.36 = 48,339.22 : x - Step 2: Convert to fraction form
86,581.14/119,484.36 = 48,339.22/x - Step 3: Cross multiply
86,581.14x = 119,484.36 × 48,339.22 - Step 4: Simplify right side
86,581.14x = 5,775,780,487.91 - Step 5: Solve for x
x = 5,775,780,487.91/86,581.14 - Step 6: Final answer
x = 66,709.45
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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.