Finding the Fourth Proportional to 86,068.64, 129,053.30 and 33,416.62
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Solution
The fourth proportional to 86,068.64, 129,053.30 and 33,416.62 is: 50,105.65
Step by Step Solution
- Step 1: Write the proportion equation
86,068.64 : 129,053.30 = 33,416.62 : x - Step 2: Convert to fraction form
86,068.64/129,053.30 = 33,416.62/x - Step 3: Cross multiply
86,068.64x = 129,053.30 × 33,416.62 - Step 4: Simplify right side
86,068.64x = 4,312,525,085.85 - Step 5: Solve for x
x = 4,312,525,085.85/86,068.64 - Step 6: Final answer
x = 50,105.65
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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.