Finding the Fourth Proportional to 86,451.92, 119,312.82 and 50,671.99
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Solution
The fourth proportional to 86,451.92, 119,312.82 and 50,671.99 is: 69,932.72
Step by Step Solution
- Step 1: Write the proportion equation
86,451.92 : 119,312.82 = 50,671.99 : x - Step 2: Convert to fraction form
86,451.92/119,312.82 = 50,671.99/x - Step 3: Cross multiply
86,451.92x = 119,312.82 × 50,671.99 - Step 4: Simplify right side
86,451.92x = 6,045,817,171.99 - Step 5: Solve for x
x = 6,045,817,171.99/86,451.92 - Step 6: Final answer
x = 69,932.72
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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.