Finding the Fourth Proportional to 69,303.68, 103,939.62 and 19,387.31
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Solution
The fourth proportional to 69,303.68, 103,939.62 and 19,387.31 is: 29,076.52
Step by Step Solution
- Step 1: Write the proportion equation
69,303.68 : 103,939.62 = 19,387.31 : x - Step 2: Convert to fraction form
69,303.68/103,939.62 = 19,387.31/x - Step 3: Cross multiply
69,303.68x = 103,939.62 × 19,387.31 - Step 4: Simplify right side
69,303.68x = 2,015,109,634.22 - Step 5: Solve for x
x = 2,015,109,634.22/69,303.68 - Step 6: Final answer
x = 29,076.52
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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.