Finding the Fourth Proportional to 81,508.96, 112,531.44 and 53,261.92
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Solution
The fourth proportional to 81,508.96, 112,531.44 and 53,261.92 is: 73,533.52
Step by Step Solution
- Step 1: Write the proportion equation
81,508.96 : 112,531.44 = 53,261.92 : x - Step 2: Convert to fraction form
81,508.96/112,531.44 = 53,261.92/x - Step 3: Cross multiply
81,508.96x = 112,531.44 × 53,261.92 - Step 4: Simplify right side
81,508.96x = 5,993,640,554.76 - Step 5: Solve for x
x = 5,993,640,554.76/81,508.96 - Step 6: Final answer
x = 73,533.52
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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.