Finding the Fourth Proportional to 76,604.80, 114,165.16 and 72,618.99
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Solution
The fourth proportional to 76,604.80, 114,165.16 and 72,618.99 is: 108,225.06
Step by Step Solution
- Step 1: Write the proportion equation
76,604.80 : 114,165.16 = 72,618.99 : x - Step 2: Convert to fraction form
76,604.80/114,165.16 = 72,618.99/x - Step 3: Cross multiply
76,604.80x = 114,165.16 × 72,618.99 - Step 4: Simplify right side
76,604.80x = 8,290,558,907.57 - Step 5: Solve for x
x = 8,290,558,907.57/76,604.80 - Step 6: Final answer
x = 108,225.06
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1.5x scale
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.