Finding the Fourth Proportional to 93,134.26, 128,528.06 and 57,344.92
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Solution
The fourth proportional to 93,134.26, 128,528.06 and 57,344.92 is: 79,137.70
Step by Step Solution
- Step 1: Write the proportion equation
93,134.26 : 128,528.06 = 57,344.92 : x - Step 2: Convert to fraction form
93,134.26/128,528.06 = 57,344.92/x - Step 3: Cross multiply
93,134.26x = 128,528.06 × 57,344.92 - Step 4: Simplify right side
93,134.26x = 7,370,431,318.46 - Step 5: Solve for x
x = 7,370,431,318.46/93,134.26 - Step 6: Final answer
x = 79,137.70
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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.