Finding the Fourth Proportional to 77,877.05, 107,461.08 and 43,877.70
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Solution
The fourth proportional to 77,877.05, 107,461.08 and 43,877.70 is: 60,546.02
Step by Step Solution
- Step 1: Write the proportion equation
77,877.05 : 107,461.08 = 43,877.70 : x - Step 2: Convert to fraction form
77,877.05/107,461.08 = 43,877.70/x - Step 3: Cross multiply
77,877.05x = 107,461.08 × 43,877.70 - Step 4: Simplify right side
77,877.05x = 4,715,145,029.92 - Step 5: Solve for x
x = 4,715,145,029.92/77,877.05 - Step 6: Final answer
x = 60,546.02
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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.