Finding the Fourth Proportional to 77,313.24, 115,972.93 and 36,777.02
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Solution
The fourth proportional to 77,313.24, 115,972.93 and 36,777.02 is: 55,166.99
Step by Step Solution
- Step 1: Write the proportion equation
77,313.24 : 115,972.93 = 36,777.02 : x - Step 2: Convert to fraction form
77,313.24/115,972.93 = 36,777.02/x - Step 3: Cross multiply
77,313.24x = 115,972.93 × 36,777.02 - Step 4: Simplify right side
77,313.24x = 4,265,138,575.13 - Step 5: Solve for x
x = 4,265,138,575.13/77,313.24 - Step 6: Final answer
x = 55,166.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.