Finding the Fourth Proportional to 75,211.36, 113,345.44 and 67,724.08
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Solution
The fourth proportional to 75,211.36, 113,345.44 and 67,724.08 is: 102,061.92
Step by Step Solution
- Step 1: Write the proportion equation
75,211.36 : 113,345.44 = 67,724.08 : x - Step 2: Convert to fraction form
75,211.36/113,345.44 = 67,724.08/x - Step 3: Cross multiply
75,211.36x = 113,345.44 × 67,724.08 - Step 4: Simplify right side
75,211.36x = 7,676,215,646.20 - Step 5: Solve for x
x = 7,676,215,646.20/75,211.36 - Step 6: Final answer
x = 102,061.92
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.