Finding the Fourth Proportional to 71,903.08, 107,864.34 and 67,529.08
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Solution
The fourth proportional to 71,903.08, 107,864.34 and 67,529.08 is: 101,302.75
Step by Step Solution
- Step 1: Write the proportion equation
71,903.08 : 107,864.34 = 67,529.08 : x - Step 2: Convert to fraction form
71,903.08/107,864.34 = 67,529.08/x - Step 3: Cross multiply
71,903.08x = 107,864.34 × 67,529.08 - Step 4: Simplify right side
71,903.08x = 7,283,979,645.01 - Step 5: Solve for x
x = 7,283,979,645.01/71,903.08 - Step 6: Final answer
x = 101,302.75
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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.