Finding the Fourth Proportional to 71,235.63, 106,813.95 and 29,145.24
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Solution
The fourth proportional to 71,235.63, 106,813.95 and 29,145.24 is: 43,701.70
Step by Step Solution
- Step 1: Write the proportion equation
71,235.63 : 106,813.95 = 29,145.24 : x - Step 2: Convert to fraction form
71,235.63/106,813.95 = 29,145.24/x - Step 3: Cross multiply
71,235.63x = 106,813.95 × 29,145.24 - Step 4: Simplify right side
71,235.63x = 3,113,118,208.10 - Step 5: Solve for x
x = 3,113,118,208.10/71,235.63 - Step 6: Final answer
x = 43,701.70
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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.