Finding the Fourth Proportional to 86,672.62, 119,602.74 and 48,429.28
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Solution
The fourth proportional to 86,672.62, 119,602.74 and 48,429.28 is: 66,829.35
Step by Step Solution
- Step 1: Write the proportion equation
86,672.62 : 119,602.74 = 48,429.28 : x - Step 2: Convert to fraction form
86,672.62/119,602.74 = 48,429.28/x - Step 3: Cross multiply
86,672.62x = 119,602.74 × 48,429.28 - Step 4: Simplify right side
86,672.62x = 5,792,274,584.23 - Step 5: Solve for x
x = 5,792,274,584.23/86,672.62 - Step 6: Final answer
x = 66,829.35
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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.