Finding the Fourth Proportional to 81,027.96, 121,541.94 and 21,863.63
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Solution
The fourth proportional to 81,027.96, 121,541.94 and 21,863.63 is: 32,795.45
Step by Step Solution
- Step 1: Write the proportion equation
81,027.96 : 121,541.94 = 21,863.63 : x - Step 2: Convert to fraction form
81,027.96/121,541.94 = 21,863.63/x - Step 3: Cross multiply
81,027.96x = 121,541.94 × 21,863.63 - Step 4: Simplify right side
81,027.96x = 2,657,348,005.64 - Step 5: Solve for x
x = 2,657,348,005.64/81,027.96 - Step 6: Final answer
x = 32,795.45
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1.5x scale
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.