Finding the Fourth Proportional to 90,097.45, 124,323.34 and 49,811.99
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Solution
The fourth proportional to 90,097.45, 124,323.34 and 49,811.99 is: 68,734.39
Step by Step Solution
- Step 1: Write the proportion equation
90,097.45 : 124,323.34 = 49,811.99 : x - Step 2: Convert to fraction form
90,097.45/124,323.34 = 49,811.99/x - Step 3: Cross multiply
90,097.45x = 124,323.34 × 49,811.99 - Step 4: Simplify right side
90,097.45x = 6,192,793,155.12 - Step 5: Solve for x
x = 6,192,793,155.12/90,097.45 - Step 6: Final answer
x = 68,734.39
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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.