Finding the Fourth Proportional to 71,199.36, 106,774.74 and 29,072.88
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Solution
The fourth proportional to 71,199.36, 106,774.74 and 29,072.88 is: 43,599.40
Step by Step Solution
- Step 1: Write the proportion equation
71,199.36 : 106,774.74 = 29,072.88 : x - Step 2: Convert to fraction form
71,199.36/106,774.74 = 29,072.88/x - Step 3: Cross multiply
71,199.36x = 106,774.74 × 29,072.88 - Step 4: Simplify right side
71,199.36x = 3,104,249,203.05 - Step 5: Solve for x
x = 3,104,249,203.05/71,199.36 - Step 6: Final answer
x = 43,599.40
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1.5x scale
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.