Finding the Fourth Proportional to 86,348.70, 119,140.47 and 48,622.95
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Solution
The fourth proportional to 86,348.70, 119,140.47 and 48,622.95 is: 67,087.99
Step by Step Solution
- Step 1: Write the proportion equation
86,348.70 : 119,140.47 = 48,622.95 : x - Step 2: Convert to fraction form
86,348.70/119,140.47 = 48,622.95/x - Step 3: Cross multiply
86,348.70x = 119,140.47 × 48,622.95 - Step 4: Simplify right side
86,348.70x = 5,792,961,115.79 - Step 5: Solve for x
x = 5,792,961,115.79/86,348.70 - Step 6: Final answer
x = 67,087.99
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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.