Finding the Fourth Proportional to 88,268.92, 121,810.76 and 51,991.45
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Solution
The fourth proportional to 88,268.92, 121,810.76 and 51,991.45 is: 71,747.99
Step by Step Solution
- Step 1: Write the proportion equation
88,268.92 : 121,810.76 = 51,991.45 : x - Step 2: Convert to fraction form
88,268.92/121,810.76 = 51,991.45/x - Step 3: Cross multiply
88,268.92x = 121,810.76 × 51,991.45 - Step 4: Simplify right side
88,268.92x = 6,333,117,168.99 - Step 5: Solve for x
x = 6,333,117,168.99/88,268.92 - Step 6: Final answer
x = 71,747.99
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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.