Finding the Fourth Proportional to 98,777.99, 136,313.09 and 53,455.95
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Solution
The fourth proportional to 98,777.99, 136,313.09 and 53,455.95 is: 73,768.92
Step by Step Solution
- Step 1: Write the proportion equation
98,777.99 : 136,313.09 = 53,455.95 : x - Step 2: Convert to fraction form
98,777.99/136,313.09 = 53,455.95/x - Step 3: Cross multiply
98,777.99x = 136,313.09 × 53,455.95 - Step 4: Simplify right side
98,777.99x = 7,286,745,456.11 - Step 5: Solve for x
x = 7,286,745,456.11/98,777.99 - Step 6: Final answer
x = 73,768.92
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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.