Finding the Fourth Proportional to 81,528.82, 112,457.97 and 58,901.02
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Solution
The fourth proportional to 81,528.82, 112,457.97 and 58,901.02 is: 81,245.98
Step by Step Solution
- Step 1: Write the proportion equation
81,528.82 : 112,457.97 = 58,901.02 : x - Step 2: Convert to fraction form
81,528.82/112,457.97 = 58,901.02/x - Step 3: Cross multiply
81,528.82x = 112,457.97 × 58,901.02 - Step 4: Simplify right side
81,528.82x = 6,623,889,140.13 - Step 5: Solve for x
x = 6,623,889,140.13/81,528.82 - Step 6: Final answer
x = 81,245.98
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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.