Finding the Fourth Proportional to 89,215.75, 123,117.74 and 49,471.75
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Solution
The fourth proportional to 89,215.75, 123,117.74 and 49,471.75 is: 68,271.02
Step by Step Solution
- Step 1: Write the proportion equation
89,215.75 : 123,117.74 = 49,471.75 : x - Step 2: Convert to fraction form
89,215.75/123,117.74 = 49,471.75/x - Step 3: Cross multiply
89,215.75x = 123,117.74 × 49,471.75 - Step 4: Simplify right side
89,215.75x = 6,090,850,053.85 - Step 5: Solve for x
x = 6,090,850,053.85/89,215.75 - Step 6: Final answer
x = 68,271.02
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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.