Finding the Fourth Proportional to 71,293.60, 106,918.79 and 29,730.88
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Solution
The fourth proportional to 71,293.60, 106,918.79 and 29,730.88 is: 44,587.31
Step by Step Solution
- Step 1: Write the proportion equation
71,293.60 : 106,918.79 = 29,730.88 : x - Step 2: Convert to fraction form
71,293.60/106,918.79 = 29,730.88/x - Step 3: Cross multiply
71,293.60x = 106,918.79 × 29,730.88 - Step 4: Simplify right side
71,293.60x = 3,178,789,715.24 - Step 5: Solve for x
x = 3,178,789,715.24/71,293.60 - Step 6: Final answer
x = 44,587.31
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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.