Finding the Fourth Proportional to 83,981.05, 125,970.79 and 34,049.28
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Solution
The fourth proportional to 83,981.05, 125,970.79 and 34,049.28 is: 51,073.60
Step by Step Solution
- Step 1: Write the proportion equation
83,981.05 : 125,970.79 = 34,049.28 : x - Step 2: Convert to fraction form
83,981.05/125,970.79 = 34,049.28/x - Step 3: Cross multiply
83,981.05x = 125,970.79 × 34,049.28 - Step 4: Simplify right side
83,981.05x = 4,289,214,700.53 - Step 5: Solve for x
x = 4,289,214,700.53/83,981.05 - Step 6: Final answer
x = 51,073.60
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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.