Finding the Fourth Proportional to 88,283.31, 121,832.30 and 47,996.99
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Solution
The fourth proportional to 88,283.31, 121,832.30 and 47,996.99 is: 66,236.56
Step by Step Solution
- Step 1: Write the proportion equation
88,283.31 : 121,832.30 = 47,996.99 : x - Step 2: Convert to fraction form
88,283.31/121,832.30 = 47,996.99/x - Step 3: Cross multiply
88,283.31x = 121,832.30 × 47,996.99 - Step 4: Simplify right side
88,283.31x = 5,847,583,135.61 - Step 5: Solve for x
x = 5,847,583,135.61/88,283.31 - Step 6: Final answer
x = 66,236.56
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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.