Finding the Fourth Proportional to 93,204.71, 128,639.18 and 54,961.94
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Solution
The fourth proportional to 93,204.71, 128,639.18 and 54,961.94 is: 75,857.32
Step by Step Solution
- Step 1: Write the proportion equation
93,204.71 : 128,639.18 = 54,961.94 : x - Step 2: Convert to fraction form
93,204.71/128,639.18 = 54,961.94/x - Step 3: Cross multiply
93,204.71x = 128,639.18 × 54,961.94 - Step 4: Simplify right side
93,204.71x = 7,070,259,351.81 - Step 5: Solve for x
x = 7,070,259,351.81/93,204.71 - Step 6: Final answer
x = 75,857.32
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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.