Finding the Fourth Proportional to 75,129.36, 112,613.04 and 48,852.96
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Solution
The fourth proportional to 75,129.36, 112,613.04 and 48,852.96 is: 73,226.77
Step by Step Solution
- Step 1: Write the proportion equation
75,129.36 : 112,613.04 = 48,852.96 : x - Step 2: Convert to fraction form
75,129.36/112,613.04 = 48,852.96/x - Step 3: Cross multiply
75,129.36x = 112,613.04 × 48,852.96 - Step 4: Simplify right side
75,129.36x = 5,501,480,338.60 - Step 5: Solve for x
x = 5,501,480,338.60/75,129.36 - Step 6: Final answer
x = 73,226.77
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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.