Finding the Fourth Proportional to 76,351.84, 105,412.80 and 50,894.08
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Solution
The fourth proportional to 76,351.84, 105,412.80 and 50,894.08 is: 70,265.33
Step by Step Solution
- Step 1: Write the proportion equation
76,351.84 : 105,412.80 = 50,894.08 : x - Step 2: Convert to fraction form
76,351.84/105,412.80 = 50,894.08/x - Step 3: Cross multiply
76,351.84x = 105,412.80 × 50,894.08 - Step 4: Simplify right side
76,351.84x = 5,364,887,476.22 - Step 5: Solve for x
x = 5,364,887,476.22/76,351.84 - Step 6: Final answer
x = 70,265.33
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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.