Finding the Fourth Proportional to 83,697.06, 115,527.54 and 49,711.08
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Solution
The fourth proportional to 83,697.06, 115,527.54 and 49,711.08 is: 68,616.49
Step by Step Solution
- Step 1: Write the proportion equation
83,697.06 : 115,527.54 = 49,711.08 : x - Step 2: Convert to fraction form
83,697.06/115,527.54 = 49,711.08/x - Step 3: Cross multiply
83,697.06x = 115,527.54 × 49,711.08 - Step 4: Simplify right side
83,697.06x = 5,742,998,783.14 - Step 5: Solve for x
x = 5,742,998,783.14/83,697.06 - Step 6: Final answer
x = 68,616.49
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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.