Finding the Fourth Proportional to 86,390.14, 119,218.58 and 48,664.38
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Solution
The fourth proportional to 86,390.14, 119,218.58 and 48,664.38 is: 67,156.95
Step by Step Solution
- Step 1: Write the proportion equation
86,390.14 : 119,218.58 = 48,664.38 : x - Step 2: Convert to fraction form
86,390.14/119,218.58 = 48,664.38/x - Step 3: Cross multiply
86,390.14x = 119,218.58 × 48,664.38 - Step 4: Simplify right side
86,390.14x = 5,801,698,280.18 - Step 5: Solve for x
x = 5,801,698,280.18/86,390.14 - Step 6: Final answer
x = 67,156.95
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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.