Finding the Fourth Proportional to 90,630.99, 125,068.19 and 50,343.75
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Solution
The fourth proportional to 90,630.99, 125,068.19 and 50,343.75 is: 69,472.94
Step by Step Solution
- Step 1: Write the proportion equation
90,630.99 : 125,068.19 = 50,343.75 : x - Step 2: Convert to fraction form
90,630.99/125,068.19 = 50,343.75/x - Step 3: Cross multiply
90,630.99x = 125,068.19 × 50,343.75 - Step 4: Simplify right side
90,630.99x = 6,296,401,438.59 - Step 5: Solve for x
x = 6,296,401,438.59/90,630.99 - Step 6: Final answer
x = 69,472.94
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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.