Finding the Fourth Proportional to 77,389.05, 115,974.09 and 32,971.08
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Solution
The fourth proportional to 77,389.05, 115,974.09 and 32,971.08 is: 49,409.97
Step by Step Solution
- Step 1: Write the proportion equation
77,389.05 : 115,974.09 = 32,971.08 : x - Step 2: Convert to fraction form
77,389.05/115,974.09 = 32,971.08/x - Step 3: Cross multiply
77,389.05x = 115,974.09 × 32,971.08 - Step 4: Simplify right side
77,389.05x = 3,823,790,999.32 - Step 5: Solve for x
x = 3,823,790,999.32/77,389.05 - Step 6: Final answer
x = 49,409.97
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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.