Finding the Fourth Proportional to 87,812.68, 121,181.64 and 47,526.47
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Solution
The fourth proportional to 87,812.68, 121,181.64 and 47,526.47 is: 65,586.61
Step by Step Solution
- Step 1: Write the proportion equation
87,812.68 : 121,181.64 = 47,526.47 : x - Step 2: Convert to fraction form
87,812.68/121,181.64 = 47,526.47/x - Step 3: Cross multiply
87,812.68x = 121,181.64 × 47,526.47 - Step 4: Simplify right side
87,812.68x = 5,759,335,578.01 - Step 5: Solve for x
x = 5,759,335,578.01/87,812.68 - Step 6: Final answer
x = 65,586.61
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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.