Finding the Fourth Proportional to 77,418.79, 106,837.85 and 43,884.79
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Solution
The fourth proportional to 77,418.79, 106,837.85 and 43,884.79 is: 60,560.96
Step by Step Solution
- Step 1: Write the proportion equation
77,418.79 : 106,837.85 = 43,884.79 : x - Step 2: Convert to fraction form
77,418.79/106,837.85 = 43,884.79/x - Step 3: Cross multiply
77,418.79x = 106,837.85 × 43,884.79 - Step 4: Simplify right side
77,418.79x = 4,688,556,611.30 - Step 5: Solve for x
x = 4,688,556,611.30/77,418.79 - Step 6: Final answer
x = 60,560.96
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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.