Finding the Fourth Proportional to 93,728.13, 129,344.81 and 51,286.66
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Solution
The fourth proportional to 93,728.13, 129,344.81 and 51,286.66 is: 70,775.59
Step by Step Solution
- Step 1: Write the proportion equation
93,728.13 : 129,344.81 = 51,286.66 : x - Step 2: Convert to fraction form
93,728.13/129,344.81 = 51,286.66/x - Step 3: Cross multiply
93,728.13x = 129,344.81 × 51,286.66 - Step 4: Simplify right side
93,728.13x = 6,633,663,293.23 - Step 5: Solve for x
x = 6,633,663,293.23/93,728.13 - Step 6: Final answer
x = 70,775.59
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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.