Finding the Fourth Proportional to 79,938.09, 110,315.12 and 44,129.21
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Solution
The fourth proportional to 79,938.09, 110,315.12 and 44,129.21 is: 60,898.61
Step by Step Solution
- Step 1: Write the proportion equation
79,938.09 : 110,315.12 = 44,129.21 : x - Step 2: Convert to fraction form
79,938.09/110,315.12 = 44,129.21/x - Step 3: Cross multiply
79,938.09x = 110,315.12 × 44,129.21 - Step 4: Simplify right side
79,938.09x = 4,868,118,324.43 - Step 5: Solve for x
x = 4,868,118,324.43/79,938.09 - Step 6: Final answer
x = 60,898.61
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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.