Finding the Fourth Proportional to 83,972.59, 115,873.60 and 51,702.09
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Solution
The fourth proportional to 83,972.59, 115,873.60 and 51,702.09 is: 71,343.61
Step by Step Solution
- Step 1: Write the proportion equation
83,972.59 : 115,873.60 = 51,702.09 : x - Step 2: Convert to fraction form
83,972.59/115,873.60 = 51,702.09/x - Step 3: Cross multiply
83,972.59x = 115,873.60 × 51,702.09 - Step 4: Simplify right side
83,972.59x = 5,990,907,295.82 - Step 5: Solve for x
x = 5,990,907,295.82/83,972.59 - Step 6: Final answer
x = 71,343.61
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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.