Finding the Fourth Proportional to 115,989.71, 173,935.35 and 41,128.70
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Solution
The fourth proportional to 115,989.71, 173,935.35 and 41,128.70 is: 61,675.59
Step by Step Solution
- Step 1: Write the proportion equation
115,989.71 : 173,935.35 = 41,128.70 : x - Step 2: Convert to fraction form
115,989.71/173,935.35 = 41,128.70/x - Step 3: Cross multiply
115,989.71x = 173,935.35 × 41,128.70 - Step 4: Simplify right side
115,989.71x = 7,153,733,959.87 - Step 5: Solve for x
x = 7,153,733,959.87/115,989.71 - Step 6: Final answer
x = 61,675.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.