Finding the Fourth Proportional to 86,369.24, 129,558.51 and 27,209.54
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Solution
The fourth proportional to 86,369.24, 129,558.51 and 27,209.54 is: 40,815.77
Step by Step Solution
- Step 1: Write the proportion equation
86,369.24 : 129,558.51 = 27,209.54 : x - Step 2: Convert to fraction form
86,369.24/129,558.51 = 27,209.54/x - Step 3: Cross multiply
86,369.24x = 129,558.51 × 27,209.54 - Step 4: Simplify right side
86,369.24x = 3,525,227,324.14 - Step 5: Solve for x
x = 3,525,227,324.14/86,369.24 - Step 6: Final answer
x = 40,815.77
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1.5x scale
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.