Finding the Fourth Proportional to 84,679.94, 116,867.94 and 48,879.56
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Solution
The fourth proportional to 84,679.94, 116,867.94 and 48,879.56 is: 67,459.35
Step by Step Solution
- Step 1: Write the proportion equation
84,679.94 : 116,867.94 = 48,879.56 : x - Step 2: Convert to fraction form
84,679.94/116,867.94 = 48,879.56/x - Step 3: Cross multiply
84,679.94x = 116,867.94 × 48,879.56 - Step 4: Simplify right side
84,679.94x = 5,712,453,485.31 - Step 5: Solve for x
x = 5,712,453,485.31/84,679.94 - Step 6: Final answer
x = 67,459.35
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.