Finding the Fourth Proportional to 71,936.08, 107,903.96 and 19,345.62
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Solution
The fourth proportional to 71,936.08, 107,903.96 and 19,345.62 is: 29,018.38
Step by Step Solution
- Step 1: Write the proportion equation
71,936.08 : 107,903.96 = 19,345.62 : x - Step 2: Convert to fraction form
71,936.08/107,903.96 = 19,345.62/x - Step 3: Cross multiply
71,936.08x = 107,903.96 × 19,345.62 - Step 4: Simplify right side
71,936.08x = 2,087,468,467.14 - Step 5: Solve for x
x = 2,087,468,467.14/71,936.08 - Step 6: Final answer
x = 29,018.38
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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.