Finding the Fourth Proportional to 71,646.45, 107,469.54 and 19,055.99
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Solution
The fourth proportional to 71,646.45, 107,469.54 and 19,055.99 is: 28,583.95
Step by Step Solution
- Step 1: Write the proportion equation
71,646.45 : 107,469.54 = 19,055.99 : x - Step 2: Convert to fraction form
71,646.45/107,469.54 = 19,055.99/x - Step 3: Cross multiply
71,646.45x = 107,469.54 × 19,055.99 - Step 4: Simplify right side
71,646.45x = 2,047,938,479.54 - Step 5: Solve for x
x = 2,047,938,479.54/71,646.45 - Step 6: Final answer
x = 28,583.95
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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.