Finding the Fourth Proportional to 86,886.99, 119,876.18 and 48,640.91
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Solution
The fourth proportional to 86,886.99, 119,876.18 and 48,640.91 is: 67,108.86
Step by Step Solution
- Step 1: Write the proportion equation
86,886.99 : 119,876.18 = 48,640.91 : x - Step 2: Convert to fraction form
86,886.99/119,876.18 = 48,640.91/x - Step 3: Cross multiply
86,886.99x = 119,876.18 × 48,640.91 - Step 4: Simplify right side
86,886.99x = 5,830,886,539.01 - Step 5: Solve for x
x = 5,830,886,539.01/86,886.99 - Step 6: Final answer
x = 67,108.86
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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.