Finding the Fourth Proportional to 74,718.84, 112,078.26 and 43,177.08
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Solution
The fourth proportional to 74,718.84, 112,078.26 and 43,177.08 is: 64,765.62
Step by Step Solution
- Step 1: Write the proportion equation
74,718.84 : 112,078.26 = 43,177.08 : x - Step 2: Convert to fraction form
74,718.84/112,078.26 = 43,177.08/x - Step 3: Cross multiply
74,718.84x = 112,078.26 × 43,177.08 - Step 4: Simplify right side
74,718.84x = 4,839,211,998.28 - Step 5: Solve for x
x = 4,839,211,998.28/74,718.84 - Step 6: Final answer
x = 64,765.62
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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.