Finding the Fourth Proportional to 90,449.39, 135,671.97 and 23,894.18
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Solution
The fourth proportional to 90,449.39, 135,671.97 and 23,894.18 is: 35,840.71
Step by Step Solution
- Step 1: Write the proportion equation
90,449.39 : 135,671.97 = 23,894.18 : x - Step 2: Convert to fraction form
90,449.39/135,671.97 = 23,894.18/x - Step 3: Cross multiply
90,449.39x = 135,671.97 × 23,894.18 - Step 4: Simplify right side
90,449.39x = 3,241,770,472.13 - Step 5: Solve for x
x = 3,241,770,472.13/90,449.39 - Step 6: Final answer
x = 35,840.71
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.