Finding the Fourth Proportional to 79,501.36, 109,596.30 and 55,553.68
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Solution
The fourth proportional to 79,501.36, 109,596.30 and 55,553.68 is: 76,583.32
Step by Step Solution
- Step 1: Write the proportion equation
79,501.36 : 109,596.30 = 55,553.68 : x - Step 2: Convert to fraction form
79,501.36/109,596.30 = 55,553.68/x - Step 3: Cross multiply
79,501.36x = 109,596.30 × 55,553.68 - Step 4: Simplify right side
79,501.36x = 6,088,477,779.38 - Step 5: Solve for x
x = 6,088,477,779.38/79,501.36 - Step 6: Final answer
x = 76,583.32
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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.