Finding the Fourth Proportional to 76,788.14, 115,197.86 and 43,523.06
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Solution
The fourth proportional to 76,788.14, 115,197.86 and 43,523.06 is: 65,293.46
Step by Step Solution
- Step 1: Write the proportion equation
76,788.14 : 115,197.86 = 43,523.06 : x - Step 2: Convert to fraction form
76,788.14/115,197.86 = 43,523.06/x - Step 3: Cross multiply
76,788.14x = 115,197.86 × 43,523.06 - Step 4: Simplify right side
76,788.14x = 5,013,762,905.47 - Step 5: Solve for x
x = 5,013,762,905.47/76,788.14 - Step 6: Final answer
x = 65,293.46
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.