Finding the Fourth Proportional to 77,149.97, 115,538.08 and 53,390.94
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Solution
The fourth proportional to 77,149.97, 115,538.08 and 53,390.94 is: 79,957.08
Step by Step Solution
- Step 1: Write the proportion equation
77,149.97 : 115,538.08 = 53,390.94 : x - Step 2: Convert to fraction form
77,149.97/115,538.08 = 53,390.94/x - Step 3: Cross multiply
77,149.97x = 115,538.08 × 53,390.94 - Step 4: Simplify right side
77,149.97x = 6,168,686,697.00 - Step 5: Solve for x
x = 6,168,686,697.00/77,149.97 - Step 6: Final answer
x = 79,957.08
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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.