Finding the Fourth Proportional to 128,483.91, 192,674.79 and 49,547.79
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Solution
The fourth proportional to 128,483.91, 192,674.79 and 49,547.79 is: 74,301.99
Step by Step Solution
- Step 1: Write the proportion equation
128,483.91 : 192,674.79 = 49,547.79 : x - Step 2: Convert to fraction form
128,483.91/192,674.79 = 49,547.79/x - Step 3: Cross multiply
128,483.91x = 192,674.79 × 49,547.79 - Step 4: Simplify right side
128,483.91x = 9,546,610,033.21 - Step 5: Solve for x
x = 9,546,610,033.21/128,483.91 - Step 6: Final answer
x = 74,301.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.