Finding the Fourth Proportional to 76,425.13, 113,940.04 and 74,482.91
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Solution
The fourth proportional to 76,425.13, 113,940.04 and 74,482.91 is: 111,044.45
Step by Step Solution
- Step 1: Write the proportion equation
76,425.13 : 113,940.04 = 74,482.91 : x - Step 2: Convert to fraction form
76,425.13/113,940.04 = 74,482.91/x - Step 3: Cross multiply
76,425.13x = 113,940.04 × 74,482.91 - Step 4: Simplify right side
76,425.13x = 8,486,585,744.72 - Step 5: Solve for x
x = 8,486,585,744.72/76,425.13 - Step 6: Final answer
x = 111,044.45
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.