Finding the Fourth Proportional to 90,975.24, 125,400.42 and 60,700.68
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Solution
The fourth proportional to 90,975.24, 125,400.42 and 60,700.68 is: 83,669.92
Step by Step Solution
- Step 1: Write the proportion equation
90,975.24 : 125,400.42 = 60,700.68 : x - Step 2: Convert to fraction form
90,975.24/125,400.42 = 60,700.68/x - Step 3: Cross multiply
90,975.24x = 125,400.42 × 60,700.68 - Step 4: Simplify right side
90,975.24x = 7,611,890,766.29 - Step 5: Solve for x
x = 7,611,890,766.29/90,975.24 - Step 6: Final answer
x = 83,669.92
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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.