Finding the Fourth Proportional to 91,158.99, 125,805.74 and 50,880.60
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Solution
The fourth proportional to 91,158.99, 125,805.74 and 50,880.60 is: 70,218.76
Step by Step Solution
- Step 1: Write the proportion equation
91,158.99 : 125,805.74 = 50,880.60 : x - Step 2: Convert to fraction form
91,158.99/125,805.74 = 50,880.60/x - Step 3: Cross multiply
91,158.99x = 125,805.74 × 50,880.60 - Step 4: Simplify right side
91,158.99x = 6,401,071,280.24 - Step 5: Solve for x
x = 6,401,071,280.24/91,158.99 - Step 6: Final answer
x = 70,218.76
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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.