Finding the Fourth Proportional to 73,177.99, 100,987.11 and 40,473.43
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Solution
The fourth proportional to 73,177.99, 100,987.11 and 40,473.43 is: 55,854.15
Step by Step Solution
- Step 1: Write the proportion equation
73,177.99 : 100,987.11 = 40,473.43 : x - Step 2: Convert to fraction form
73,177.99/100,987.11 = 40,473.43/x - Step 3: Cross multiply
73,177.99x = 100,987.11 × 40,473.43 - Step 4: Simplify right side
73,177.99x = 4,087,294,727.49 - Step 5: Solve for x
x = 4,087,294,727.49/73,177.99 - Step 6: Final answer
x = 55,854.15
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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.