Finding the Fourth Proportional to 73,455.50, 101,368.86 and 39,921.50
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Solution
The fourth proportional to 73,455.50, 101,368.86 and 39,921.50 is: 55,091.82
Step by Step Solution
- Step 1: Write the proportion equation
73,455.50 : 101,368.86 = 39,921.50 : x - Step 2: Convert to fraction form
73,455.50/101,368.86 = 39,921.50/x - Step 3: Cross multiply
73,455.50x = 101,368.86 × 39,921.50 - Step 4: Simplify right side
73,455.50x = 4,046,796,944.49 - Step 5: Solve for x
x = 4,046,796,944.49/73,455.50 - Step 6: Final answer
x = 55,091.82
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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.