Finding the Fourth Proportional to 83,679.89, 115,474.14 and 47,873.84
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Solution
The fourth proportional to 83,679.89, 115,474.14 and 47,873.84 is: 66,063.55
Step by Step Solution
- Step 1: Write the proportion equation
83,679.89 : 115,474.14 = 47,873.84 : x - Step 2: Convert to fraction form
83,679.89/115,474.14 = 47,873.84/x - Step 3: Cross multiply
83,679.89x = 115,474.14 × 47,873.84 - Step 4: Simplify right side
83,679.89x = 5,528,189,925.13 - Step 5: Solve for x
x = 5,528,189,925.13/83,679.89 - Step 6: Final answer
x = 66,063.55
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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.