Finding the Fourth Proportional to 86,803.12, 130,204.68 and 27,656.92
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Solution
The fourth proportional to 86,803.12, 130,204.68 and 27,656.92 is: 41,485.38
Step by Step Solution
- Step 1: Write the proportion equation
86,803.12 : 130,204.68 = 27,656.92 : x - Step 2: Convert to fraction form
86,803.12/130,204.68 = 27,656.92/x - Step 3: Cross multiply
86,803.12x = 130,204.68 × 27,656.92 - Step 4: Simplify right side
86,803.12x = 3,601,060,418.39 - Step 5: Solve for x
x = 3,601,060,418.39/86,803.12 - Step 6: Final answer
x = 41,485.38
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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.