Finding the Fourth Proportional to 88,153.80, 121,654.36 and 47,869.26
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Solution
The fourth proportional to 88,153.80, 121,654.36 and 47,869.26 is: 66,060.73
Step by Step Solution
- Step 1: Write the proportion equation
88,153.80 : 121,654.36 = 47,869.26 : x - Step 2: Convert to fraction form
88,153.80/121,654.36 = 47,869.26/x - Step 3: Cross multiply
88,153.80x = 121,654.36 × 47,869.26 - Step 4: Simplify right side
88,153.80x = 5,823,504,188.97 - Step 5: Solve for x
x = 5,823,504,188.97/88,153.80 - Step 6: Final answer
x = 66,060.73
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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.