Finding the Fourth Proportional to 86,646.51, 129,974.36 and 24,321.87
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Solution
The fourth proportional to 86,646.51, 129,974.36 and 24,321.87 is: 36,484.09
Step by Step Solution
- Step 1: Write the proportion equation
86,646.51 : 129,974.36 = 24,321.87 : x - Step 2: Convert to fraction form
86,646.51/129,974.36 = 24,321.87/x - Step 3: Cross multiply
86,646.51x = 129,974.36 × 24,321.87 - Step 4: Simplify right side
86,646.51x = 3,161,219,365.64 - Step 5: Solve for x
x = 3,161,219,365.64/86,646.51 - Step 6: Final answer
x = 36,484.09
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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.