Finding the Fourth Proportional to 86,878.28, 119,879.28 and 48,635.84
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Solution
The fourth proportional to 86,878.28, 119,879.28 and 48,635.84 is: 67,110.32
Step by Step Solution
- Step 1: Write the proportion equation
86,878.28 : 119,879.28 = 48,635.84 : x - Step 2: Convert to fraction form
86,878.28/119,879.28 = 48,635.84/x - Step 3: Cross multiply
86,878.28x = 119,879.28 × 48,635.84 - Step 4: Simplify right side
86,878.28x = 5,830,429,481.40 - Step 5: Solve for x
x = 5,830,429,481.40/86,878.28 - Step 6: Final answer
x = 67,110.32
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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.