Finding the Fourth Proportional to 97,063.68, 133,936.88 and 54,621.12
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Solution
The fourth proportional to 97,063.68, 133,936.88 and 54,621.12 is: 75,370.96
Step by Step Solution
- Step 1: Write the proportion equation
97,063.68 : 133,936.88 = 54,621.12 : x - Step 2: Convert to fraction form
97,063.68/133,936.88 = 54,621.12/x - Step 3: Cross multiply
97,063.68x = 133,936.88 × 54,621.12 - Step 4: Simplify right side
97,063.68x = 7,315,782,394.91 - Step 5: Solve for x
x = 7,315,782,394.91/97,063.68 - Step 6: Final answer
x = 75,370.96
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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.