Finding the Fourth Proportional to 81,338.97, 112,246.68 and 45,528.99
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Solution
The fourth proportional to 81,338.97, 112,246.68 and 45,528.99 is: 62,829.39
Step by Step Solution
- Step 1: Write the proportion equation
81,338.97 : 112,246.68 = 45,528.99 : x - Step 2: Convert to fraction form
81,338.97/112,246.68 = 45,528.99/x - Step 3: Cross multiply
81,338.97x = 112,246.68 × 45,528.99 - Step 4: Simplify right side
81,338.97x = 5,110,477,971.25 - Step 5: Solve for x
x = 5,110,477,971.25/81,338.97 - Step 6: Final answer
x = 62,829.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.