Finding the Fourth Proportional to 74,691.84, 112,055.04 and 33,142.08
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Solution
The fourth proportional to 74,691.84, 112,055.04 and 33,142.08 is: 49,720.79
Step by Step Solution
- Step 1: Write the proportion equation
74,691.84 : 112,055.04 = 33,142.08 : x - Step 2: Convert to fraction form
74,691.84/112,055.04 = 33,142.08/x - Step 3: Cross multiply
74,691.84x = 112,055.04 × 33,142.08 - Step 4: Simplify right side
74,691.84x = 3,713,737,100.08 - Step 5: Solve for x
x = 3,713,737,100.08/74,691.84 - Step 6: Final answer
x = 49,720.79
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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.