Finding the Fourth Proportional to 81,773.60, 122,660.30 and 25,618.08
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Solution
The fourth proportional to 81,773.60, 122,660.30 and 25,618.08 is: 38,427.09
Step by Step Solution
- Step 1: Write the proportion equation
81,773.60 : 122,660.30 = 25,618.08 : x - Step 2: Convert to fraction form
81,773.60/122,660.30 = 25,618.08/x - Step 3: Cross multiply
81,773.60x = 122,660.30 × 25,618.08 - Step 4: Simplify right side
81,773.60x = 3,142,321,378.22 - Step 5: Solve for x
x = 3,142,321,378.22/81,773.60 - Step 6: Final answer
x = 38,427.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.