Finding the Fourth Proportional to 87,248.92, 120,478.36 and 84,427.70
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Solution
The fourth proportional to 87,248.92, 120,478.36 and 84,427.70 is: 116,582.66
Step by Step Solution
- Step 1: Write the proportion equation
87,248.92 : 120,478.36 = 84,427.70 : x - Step 2: Convert to fraction form
87,248.92/120,478.36 = 84,427.70/x - Step 3: Cross multiply
87,248.92x = 120,478.36 × 84,427.70 - Step 4: Simplify right side
87,248.92x = 10,171,710,834.57 - Step 5: Solve for x
x = 10,171,710,834.57/87,248.92 - Step 6: Final answer
x = 116,582.66
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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.