Finding the Fourth Proportional to 77,239.44, 106,585.26 and 43,242.18
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Solution
The fourth proportional to 77,239.44, 106,585.26 and 43,242.18 is: 59,671.32
Step by Step Solution
- Step 1: Write the proportion equation
77,239.44 : 106,585.26 = 43,242.18 : x - Step 2: Convert to fraction form
77,239.44/106,585.26 = 43,242.18/x - Step 3: Cross multiply
77,239.44x = 106,585.26 × 43,242.18 - Step 4: Simplify right side
77,239.44x = 4,608,978,998.27 - Step 5: Solve for x
x = 4,608,978,998.27/77,239.44 - Step 6: Final answer
x = 59,671.32
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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.