Finding the Fourth Proportional to 86,132.24, 129,198.34 and 26,972.54
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Solution
The fourth proportional to 86,132.24, 129,198.34 and 26,972.54 is: 40,458.80
Step by Step Solution
- Step 1: Write the proportion equation
86,132.24 : 129,198.34 = 26,972.54 : x - Step 2: Convert to fraction form
86,132.24/129,198.34 = 26,972.54/x - Step 3: Cross multiply
86,132.24x = 129,198.34 × 26,972.54 - Step 4: Simplify right side
86,132.24x = 3,484,807,393.58 - Step 5: Solve for x
x = 3,484,807,393.58/86,132.24 - Step 6: Final answer
x = 40,458.80
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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.