Finding the Fourth Proportional to 90,946.29, 125,508.08 and 50,660.70
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Solution
The fourth proportional to 90,946.29, 125,508.08 and 50,660.70 is: 69,912.98
Step by Step Solution
- Step 1: Write the proportion equation
90,946.29 : 125,508.08 = 50,660.70 : x - Step 2: Convert to fraction form
90,946.29/125,508.08 = 50,660.70/x - Step 3: Cross multiply
90,946.29x = 125,508.08 × 50,660.70 - Step 4: Simplify right side
90,946.29x = 6,358,326,559.49 - Step 5: Solve for x
x = 6,358,326,559.49/90,946.29 - Step 6: Final answer
x = 69,912.98
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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.