Finding the Fourth Proportional to 86,368.44, 129,557.28 and 27,208.74
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Solution
The fourth proportional to 86,368.44, 129,557.28 and 27,208.74 is: 40,814.57
Step by Step Solution
- Step 1: Write the proportion equation
86,368.44 : 129,557.28 = 27,208.74 : x - Step 2: Convert to fraction form
86,368.44/129,557.28 = 27,208.74/x - Step 3: Cross multiply
86,368.44x = 129,557.28 × 27,208.74 - Step 4: Simplify right side
86,368.44x = 3,525,090,346.63 - Step 5: Solve for x
x = 3,525,090,346.63/86,368.44 - Step 6: Final answer
x = 40,814.57
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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.