Finding the Fourth Proportional to 86,118.14, 129,177.18 and 23,788.64
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Solution
The fourth proportional to 86,118.14, 129,177.18 and 23,788.64 is: 35,682.95
Step by Step Solution
- Step 1: Write the proportion equation
86,118.14 : 129,177.18 = 23,788.64 : x - Step 2: Convert to fraction form
86,118.14/129,177.18 = 23,788.64/x - Step 3: Cross multiply
86,118.14x = 129,177.18 × 23,788.64 - Step 4: Simplify right side
86,118.14x = 3,072,949,431.24 - Step 5: Solve for x
x = 3,072,949,431.24/86,118.14 - Step 6: Final answer
x = 35,682.95
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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.