Finding the Fourth Proportional to 73,865.75, 101,935.01 and 40,331.75
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Solution
The fourth proportional to 73,865.75, 101,935.01 and 40,331.75 is: 55,657.96
Step by Step Solution
- Step 1: Write the proportion equation
73,865.75 : 101,935.01 = 40,331.75 : x - Step 2: Convert to fraction form
73,865.75/101,935.01 = 40,331.75/x - Step 3: Cross multiply
73,865.75x = 101,935.01 × 40,331.75 - Step 4: Simplify right side
73,865.75x = 4,111,217,137.91 - Step 5: Solve for x
x = 4,111,217,137.91/73,865.75 - Step 6: Final answer
x = 55,657.96
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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.