Finding the Fourth Proportional to 83,711.64, 115,543.98 and 51,862.44
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Solution
The fourth proportional to 83,711.64, 115,543.98 and 51,862.44 is: 71,583.75
Step by Step Solution
- Step 1: Write the proportion equation
83,711.64 : 115,543.98 = 51,862.44 : x - Step 2: Convert to fraction form
83,711.64/115,543.98 = 51,862.44/x - Step 3: Cross multiply
83,711.64x = 115,543.98 × 51,862.44 - Step 4: Simplify right side
83,711.64x = 5,992,392,730.11 - Step 5: Solve for x
x = 5,992,392,730.11/83,711.64 - Step 6: Final answer
x = 71,583.75
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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.