Finding the Fourth Proportional to 76,872.84, 106,044.16 and 62,548.68
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Solution
The fourth proportional to 76,872.84, 106,044.16 and 62,548.68 is: 86,284.34
Step by Step Solution
- Step 1: Write the proportion equation
76,872.84 : 106,044.16 = 62,548.68 : x - Step 2: Convert to fraction form
76,872.84/106,044.16 = 62,548.68/x - Step 3: Cross multiply
76,872.84x = 106,044.16 × 62,548.68 - Step 4: Simplify right side
76,872.84x = 6,632,922,229.71 - Step 5: Solve for x
x = 6,632,922,229.71/76,872.84 - Step 6: Final answer
x = 86,284.34
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1.5x scale
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.