Finding the Fourth Proportional to 81,968.14, 113,124.56 and 50,158.23
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Solution
The fourth proportional to 81,968.14, 113,124.56 and 50,158.23 is: 69,223.58
Step by Step Solution
- Step 1: Write the proportion equation
81,968.14 : 113,124.56 = 50,158.23 : x - Step 2: Convert to fraction form
81,968.14/113,124.56 = 50,158.23/x - Step 3: Cross multiply
81,968.14x = 113,124.56 × 50,158.23 - Step 4: Simplify right side
81,968.14x = 5,674,127,699.13 - Step 5: Solve for x
x = 5,674,127,699.13/81,968.14 - Step 6: Final answer
x = 69,223.58
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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.