Finding the Fourth Proportional to 88,283.45, 121,833.55 and 47,999.99
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Solution
The fourth proportional to 88,283.45, 121,833.55 and 47,999.99 is: 66,241.29
Step by Step Solution
- Step 1: Write the proportion equation
88,283.45 : 121,833.55 = 47,999.99 : x - Step 2: Convert to fraction form
88,283.45/121,833.55 = 47,999.99/x - Step 3: Cross multiply
88,283.45x = 121,833.55 × 47,999.99 - Step 4: Simplify right side
88,283.45x = 5,848,009,546.25 - Step 5: Solve for x
x = 5,848,009,546.25/88,283.45 - Step 6: Final answer
x = 66,241.29
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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.