Finding the Fourth Proportional to 72,527.91, 100,062.86 and 47,391.99
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Solution
The fourth proportional to 72,527.91, 100,062.86 and 47,391.99 is: 65,384.18
Step by Step Solution
- Step 1: Write the proportion equation
72,527.91 : 100,062.86 = 47,391.99 : x - Step 2: Convert to fraction form
72,527.91/100,062.86 = 47,391.99/x - Step 3: Cross multiply
72,527.91x = 100,062.86 × 47,391.99 - Step 4: Simplify right side
72,527.91x = 4,742,177,823.53 - Step 5: Solve for x
x = 4,742,177,823.53/72,527.91 - Step 6: Final answer
x = 65,384.18
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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.