Finding the Fourth Proportional to 88,154.64, 121,664.52 and 54,625.68
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Solution
The fourth proportional to 88,154.64, 121,664.52 and 54,625.68 is: 75,390.33
Step by Step Solution
- Step 1: Write the proportion equation
88,154.64 : 121,664.52 = 54,625.68 : x - Step 2: Convert to fraction form
88,154.64/121,664.52 = 54,625.68/x - Step 3: Cross multiply
88,154.64x = 121,664.52 × 54,625.68 - Step 4: Simplify right side
88,154.64x = 6,646,007,136.87 - Step 5: Solve for x
x = 6,646,007,136.87/88,154.64 - Step 6: Final answer
x = 75,390.33
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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.