Finding the Fourth Proportional to 72,595.09, 100,177.98 and 40,331.79
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Solution
The fourth proportional to 72,595.09, 100,177.98 and 40,331.79 is: 55,656.07
Step by Step Solution
- Step 1: Write the proportion equation
72,595.09 : 100,177.98 = 40,331.79 : x - Step 2: Convert to fraction form
72,595.09/100,177.98 = 40,331.79/x - Step 3: Cross multiply
72,595.09x = 100,177.98 × 40,331.79 - Step 4: Simplify right side
72,595.09x = 4,040,357,251.98 - Step 5: Solve for x
x = 4,040,357,251.98/72,595.09 - Step 6: Final answer
x = 55,656.07
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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.