Finding the Fourth Proportional to 98,665.71, 136,155.92 and 53,952.75
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Solution
The fourth proportional to 98,665.71, 136,155.92 and 53,952.75 is: 74,453.28
Step by Step Solution
- Step 1: Write the proportion equation
98,665.71 : 136,155.92 = 53,952.75 : x - Step 2: Convert to fraction form
98,665.71/136,155.92 = 53,952.75/x - Step 3: Cross multiply
98,665.71x = 136,155.92 × 53,952.75 - Step 4: Simplify right side
98,665.71x = 7,345,986,043.02 - Step 5: Solve for x
x = 7,345,986,043.02/98,665.71 - Step 6: Final answer
x = 74,453.28
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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.