Finding the Fourth Proportional to 93,107.54, 128,477.96 and 54,864.60
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Solution
The fourth proportional to 93,107.54, 128,477.96 and 54,864.60 is: 75,706.99
Step by Step Solution
- Step 1: Write the proportion equation
93,107.54 : 128,477.96 = 54,864.60 : x - Step 2: Convert to fraction form
93,107.54/128,477.96 = 54,864.60/x - Step 3: Cross multiply
93,107.54x = 128,477.96 × 54,864.60 - Step 4: Simplify right side
93,107.54x = 7,048,891,884.22 - Step 5: Solve for x
x = 7,048,891,884.22/93,107.54 - Step 6: Final answer
x = 75,706.99
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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.