Finding the Fourth Proportional to 77,563.80, 107,048.14 and 47,342.84
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Solution
The fourth proportional to 77,563.80, 107,048.14 and 47,342.84 is: 65,339.28
Step by Step Solution
- Step 1: Write the proportion equation
77,563.80 : 107,048.14 = 47,342.84 : x - Step 2: Convert to fraction form
77,563.80/107,048.14 = 47,342.84/x - Step 3: Cross multiply
77,563.80x = 107,048.14 × 47,342.84 - Step 4: Simplify right side
77,563.80x = 5,067,962,964.32 - Step 5: Solve for x
x = 5,067,962,964.32/77,563.80 - Step 6: Final answer
x = 65,339.28
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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.