Finding the Fourth Proportional to 84,660.64, 116,808.44 and 52,379.75
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Solution
The fourth proportional to 84,660.64, 116,808.44 and 52,379.75 is: 72,269.68
Step by Step Solution
- Step 1: Write the proportion equation
84,660.64 : 116,808.44 = 52,379.75 : x - Step 2: Convert to fraction form
84,660.64/116,808.44 = 52,379.75/x - Step 3: Cross multiply
84,660.64x = 116,808.44 × 52,379.75 - Step 4: Simplify right side
84,660.64x = 6,118,396,915.21 - Step 5: Solve for x
x = 6,118,396,915.21/84,660.64 - Step 6: Final answer
x = 72,269.68
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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.