Finding the Fourth Proportional to 90,865.56, 125,391.54 and 50,577.99
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Solution
The fourth proportional to 90,865.56, 125,391.54 and 50,577.99 is: 69,795.99
Step by Step Solution
- Step 1: Write the proportion equation
90,865.56 : 125,391.54 = 50,577.99 : x - Step 2: Convert to fraction form
90,865.56/125,391.54 = 50,577.99/x - Step 3: Cross multiply
90,865.56x = 125,391.54 × 50,577.99 - Step 4: Simplify right side
90,865.56x = 6,342,052,056.20 - Step 5: Solve for x
x = 6,342,052,056.20/90,865.56 - Step 6: Final answer
x = 69,795.99
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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.