Finding the Fourth Proportional to 75,122.28, 103,668.74 and 41,130.76
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Solution
The fourth proportional to 75,122.28, 103,668.74 and 41,130.76 is: 56,760.45
Step by Step Solution
- Step 1: Write the proportion equation
75,122.28 : 103,668.74 = 41,130.76 : x - Step 2: Convert to fraction form
75,122.28/103,668.74 = 41,130.76/x - Step 3: Cross multiply
75,122.28x = 103,668.74 × 41,130.76 - Step 4: Simplify right side
75,122.28x = 4,263,974,483.34 - Step 5: Solve for x
x = 4,263,974,483.34/75,122.28 - Step 6: Final answer
x = 56,760.45
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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.