Finding the Fourth Proportional to 76,974.80, 115,440.60 and 24,400.40
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Solution
The fourth proportional to 76,974.80, 115,440.60 and 24,400.40 is: 36,593.75
Step by Step Solution
- Step 1: Write the proportion equation
76,974.80 : 115,440.60 = 24,400.40 : x - Step 2: Convert to fraction form
76,974.80/115,440.60 = 24,400.40/x - Step 3: Cross multiply
76,974.80x = 115,440.60 × 24,400.40 - Step 4: Simplify right side
76,974.80x = 2,816,796,816.24 - Step 5: Solve for x
x = 2,816,796,816.24/76,974.80 - Step 6: Final answer
x = 36,593.75
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1.5x scale
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.