Finding the Fourth Proportional to 84,145.84, 116,121.64 and 46,420.08
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Solution
The fourth proportional to 84,145.84, 116,121.64 and 46,420.08 is: 64,059.92
Step by Step Solution
- Step 1: Write the proportion equation
84,145.84 : 116,121.64 = 46,420.08 : x - Step 2: Convert to fraction form
84,145.84/116,121.64 = 46,420.08/x - Step 3: Cross multiply
84,145.84x = 116,121.64 × 46,420.08 - Step 4: Simplify right side
84,145.84x = 5,390,375,818.53 - Step 5: Solve for x
x = 5,390,375,818.53/84,145.84 - Step 6: Final answer
x = 64,059.92
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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.