Finding the Fourth Proportional to 86,434.08, 119,275.44 and 48,708.48
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Solution
The fourth proportional to 86,434.08, 119,275.44 and 48,708.48 is: 67,215.68
Step by Step Solution
- Step 1: Write the proportion equation
86,434.08 : 119,275.44 = 48,708.48 : x - Step 2: Convert to fraction form
86,434.08/119,275.44 = 48,708.48/x - Step 3: Cross multiply
86,434.08x = 119,275.44 × 48,708.48 - Step 4: Simplify right side
86,434.08x = 5,809,725,383.73 - Step 5: Solve for x
x = 5,809,725,383.73/86,434.08 - Step 6: Final answer
x = 67,215.68
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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.