Finding the Fourth Proportional to 128,577.41, 192,878.80 and 44,326.49
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Solution
The fourth proportional to 128,577.41, 192,878.80 and 44,326.49 is: 66,494.11
Step by Step Solution
- Step 1: Write the proportion equation
128,577.41 : 192,878.80 = 44,326.49 : x - Step 2: Convert to fraction form
128,577.41/192,878.80 = 44,326.49/x - Step 3: Cross multiply
128,577.41x = 192,878.80 × 44,326.49 - Step 4: Simplify right side
128,577.41x = 8,549,640,199.41 - Step 5: Solve for x
x = 8,549,640,199.41/128,577.41 - Step 6: Final answer
x = 66,494.11
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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.