Finding the Fourth Proportional to 71,970.20, 107,943.09 and 19,367.96
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Solution
The fourth proportional to 71,970.20, 107,943.09 and 19,367.96 is: 29,048.65
Step by Step Solution
- Step 1: Write the proportion equation
71,970.20 : 107,943.09 = 19,367.96 : x - Step 2: Convert to fraction form
71,970.20/107,943.09 = 19,367.96/x - Step 3: Cross multiply
71,970.20x = 107,943.09 × 19,367.96 - Step 4: Simplify right side
71,970.20x = 2,090,637,449.40 - Step 5: Solve for x
x = 2,090,637,449.40/71,970.20 - Step 6: Final answer
x = 29,048.65
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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.