Finding the Fourth Proportional to 77,054.18, 115,581.26 and 20,892.02
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Solution
The fourth proportional to 77,054.18, 115,581.26 and 20,892.02 is: 31,338.02
Step by Step Solution
- Step 1: Write the proportion equation
77,054.18 : 115,581.26 = 20,892.02 : x - Step 2: Convert to fraction form
77,054.18/115,581.26 = 20,892.02/x - Step 3: Cross multiply
77,054.18x = 115,581.26 × 20,892.02 - Step 4: Simplify right side
77,054.18x = 2,414,725,313.18 - Step 5: Solve for x
x = 2,414,725,313.18/77,054.18 - Step 6: Final answer
x = 31,338.02
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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.