Finding the Fourth Proportional to 70,666.75, 106,048.73 and 29,113.75
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Solution
The fourth proportional to 70,666.75, 106,048.73 and 29,113.75 is: 43,690.65
Step by Step Solution
- Step 1: Write the proportion equation
70,666.75 : 106,048.73 = 29,113.75 : x - Step 2: Convert to fraction form
70,666.75/106,048.73 = 29,113.75/x - Step 3: Cross multiply
70,666.75x = 106,048.73 × 29,113.75 - Step 4: Simplify right side
70,666.75x = 3,087,476,213.04 - Step 5: Solve for x
x = 3,087,476,213.04/70,666.75 - Step 6: Final answer
x = 43,690.65
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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.