Finding the Fourth Proportional to 86,804.12, 130,206.18 and 27,657.92
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Solution
The fourth proportional to 86,804.12, 130,206.18 and 27,657.92 is: 41,486.88
Step by Step Solution
- Step 1: Write the proportion equation
86,804.12 : 130,206.18 = 27,657.92 : x - Step 2: Convert to fraction form
86,804.12/130,206.18 = 27,657.92/x - Step 3: Cross multiply
86,804.12x = 130,206.18 × 27,657.92 - Step 4: Simplify right side
86,804.12x = 3,601,232,109.95 - Step 5: Solve for x
x = 3,601,232,109.95/86,804.12 - Step 6: Final answer
x = 41,486.88
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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.