Finding the Fourth Proportional to 77,844.24, 107,422.20 and 47,618.28
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Solution
The fourth proportional to 77,844.24, 107,422.20 and 47,618.28 is: 65,711.48
Step by Step Solution
- Step 1: Write the proportion equation
77,844.24 : 107,422.20 = 47,618.28 : x - Step 2: Convert to fraction form
77,844.24/107,422.20 = 47,618.28/x - Step 3: Cross multiply
77,844.24x = 107,422.20 × 47,618.28 - Step 4: Simplify right side
77,844.24x = 5,115,260,397.82 - Step 5: Solve for x
x = 5,115,260,397.82/77,844.24 - Step 6: Final answer
x = 65,711.48
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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.