Finding the Fourth Proportional to 86,541.36, 129,835.04 and 27,378.08
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Solution
The fourth proportional to 86,541.36, 129,835.04 and 27,378.08 is: 41,074.40
Step by Step Solution
- Step 1: Write the proportion equation
86,541.36 : 129,835.04 = 27,378.08 : x - Step 2: Convert to fraction form
86,541.36/129,835.04 = 27,378.08/x - Step 3: Cross multiply
86,541.36x = 129,835.04 × 27,378.08 - Step 4: Simplify right side
86,541.36x = 3,554,634,111.92 - Step 5: Solve for x
x = 3,554,634,111.92/86,541.36 - Step 6: Final answer
x = 41,074.40
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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.