Finding the Fourth Proportional to 77,216.84, 115,745.96 and 43,865.69
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Solution
The fourth proportional to 77,216.84, 115,745.96 and 43,865.69 is: 65,753.48
Step by Step Solution
- Step 1: Write the proportion equation
77,216.84 : 115,745.96 = 43,865.69 : x - Step 2: Convert to fraction form
77,216.84/115,745.96 = 43,865.69/x - Step 3: Cross multiply
77,216.84x = 115,745.96 × 43,865.69 - Step 4: Simplify right side
77,216.84x = 5,077,276,180.78 - Step 5: Solve for x
x = 5,077,276,180.78/77,216.84 - Step 6: Final answer
x = 65,753.48
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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.