Finding the Fourth Proportional to 75,270.75, 112,913.69 and 19,866.75
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Solution
The fourth proportional to 75,270.75, 112,913.69 and 19,866.75 is: 29,802.12
Step by Step Solution
- Step 1: Write the proportion equation
75,270.75 : 112,913.69 = 19,866.75 : x - Step 2: Convert to fraction form
75,270.75/112,913.69 = 19,866.75/x - Step 3: Cross multiply
75,270.75x = 112,913.69 × 19,866.75 - Step 4: Simplify right side
75,270.75x = 2,243,227,951.47 - Step 5: Solve for x
x = 2,243,227,951.47/75,270.75 - Step 6: Final answer
x = 29,802.12
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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.