Finding the Fourth Proportional to 84,682.76, 116,853.79 and 48,884.31
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Solution
The fourth proportional to 84,682.76, 116,853.79 and 48,884.31 is: 67,455.48
Step by Step Solution
- Step 1: Write the proportion equation
84,682.76 : 116,853.79 = 48,884.31 : x - Step 2: Convert to fraction form
84,682.76/116,853.79 = 48,884.31/x - Step 3: Cross multiply
84,682.76x = 116,853.79 × 48,884.31 - Step 4: Simplify right side
84,682.76x = 5,712,316,828.70 - Step 5: Solve for x
x = 5,712,316,828.70/84,682.76 - Step 6: Final answer
x = 67,455.48
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1.5x scale
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.