Finding the Fourth Proportional to 86,784.98, 130,172.00 and 27,663.08
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Solution
The fourth proportional to 86,784.98, 130,172.00 and 27,663.08 is: 41,492.87
Step by Step Solution
- Step 1: Write the proportion equation
86,784.98 : 130,172.00 = 27,663.08 : x - Step 2: Convert to fraction form
86,784.98/130,172.00 = 27,663.08/x - Step 3: Cross multiply
86,784.98x = 130,172.00 × 27,663.08 - Step 4: Simplify right side
86,784.98x = 3,600,957,660.58 - Step 5: Solve for x
x = 3,600,957,660.58/86,784.98 - Step 6: Final answer
x = 41,492.87
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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.