Finding the Fourth Proportional to 71,171.95, 106,721.65 and 23,769.99
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Solution
The fourth proportional to 71,171.95, 106,721.65 and 23,769.99 is: 35,642.87
Step by Step Solution
- Step 1: Write the proportion equation
71,171.95 : 106,721.65 = 23,769.99 : x - Step 2: Convert to fraction form
71,171.95/106,721.65 = 23,769.99/x - Step 3: Cross multiply
71,171.95x = 106,721.65 × 23,769.99 - Step 4: Simplify right side
71,171.95x = 2,536,772,553.28 - Step 5: Solve for x
x = 2,536,772,553.28/71,171.95 - Step 6: Final answer
x = 35,642.87
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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.