Finding the Fourth Proportional to 68,953.05, 103,427.52 and 19,036.19
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Solution
The fourth proportional to 68,953.05, 103,427.52 and 19,036.19 is: 28,553.72
Step by Step Solution
- Step 1: Write the proportion equation
68,953.05 : 103,427.52 = 19,036.19 : x - Step 2: Convert to fraction form
68,953.05/103,427.52 = 19,036.19/x - Step 3: Cross multiply
68,953.05x = 103,427.52 × 19,036.19 - Step 4: Simplify right side
68,953.05x = 1,968,866,109.13 - Step 5: Solve for x
x = 1,968,866,109.13/68,953.05 - Step 6: Final answer
x = 28,553.72
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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.