Finding the Fourth Proportional to 74,007.06, 102,128.22 and 40,473.06
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Solution
The fourth proportional to 74,007.06, 102,128.22 and 40,473.06 is: 55,851.99
Step by Step Solution
- Step 1: Write the proportion equation
74,007.06 : 102,128.22 = 40,473.06 : x - Step 2: Convert to fraction form
74,007.06/102,128.22 = 40,473.06/x - Step 3: Cross multiply
74,007.06x = 102,128.22 × 40,473.06 - Step 4: Simplify right side
74,007.06x = 4,133,441,575.75 - Step 5: Solve for x
x = 4,133,441,575.75/74,007.06 - Step 6: Final answer
x = 55,851.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.