Finding the Fourth Proportional to 90,316.19, 124,634.79 and 50,029.11
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Solution
The fourth proportional to 90,316.19, 124,634.79 and 50,029.11 is: 69,039.31
Step by Step Solution
- Step 1: Write the proportion equation
90,316.19 : 124,634.79 = 50,029.11 : x - Step 2: Convert to fraction form
90,316.19/124,634.79 = 50,029.11/x - Step 3: Cross multiply
90,316.19x = 124,634.79 × 50,029.11 - Step 4: Simplify right side
90,316.19x = 6,235,367,852.43 - Step 5: Solve for x
x = 6,235,367,852.43/90,316.19 - Step 6: Final answer
x = 69,039.31
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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.