Finding the Fourth Proportional to 94,149.09, 129,925.24 and 51,128.20
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Solution
The fourth proportional to 94,149.09, 129,925.24 and 51,128.20 is: 70,556.64
Step by Step Solution
- Step 1: Write the proportion equation
94,149.09 : 129,925.24 = 51,128.20 : x - Step 2: Convert to fraction form
94,149.09/129,925.24 = 51,128.20/x - Step 3: Cross multiply
94,149.09x = 129,925.24 × 51,128.20 - Step 4: Simplify right side
94,149.09x = 6,642,843,400.13 - Step 5: Solve for x
x = 6,642,843,400.13/94,149.09 - Step 6: Final answer
x = 70,556.64
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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.