Finding the Fourth Proportional to 96,745.28, 133,516.60 and 56,461.68
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Solution
The fourth proportional to 96,745.28, 133,516.60 and 56,461.68 is: 77,921.85
Step by Step Solution
- Step 1: Write the proportion equation
96,745.28 : 133,516.60 = 56,461.68 : x - Step 2: Convert to fraction form
96,745.28/133,516.60 = 56,461.68/x - Step 3: Cross multiply
96,745.28x = 133,516.60 × 56,461.68 - Step 4: Simplify right side
96,745.28x = 7,538,571,543.89 - Step 5: Solve for x
x = 7,538,571,543.89/96,745.28 - Step 6: Final answer
x = 77,921.85
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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.