Finding the Fourth Proportional to 79,171.19, 109,252.14 and 43,354.28
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Solution
The fourth proportional to 79,171.19, 109,252.14 and 43,354.28 is: 59,826.66
Step by Step Solution
- Step 1: Write the proportion equation
79,171.19 : 109,252.14 = 43,354.28 : x - Step 2: Convert to fraction form
79,171.19/109,252.14 = 43,354.28/x - Step 3: Cross multiply
79,171.19x = 109,252.14 × 43,354.28 - Step 4: Simplify right side
79,171.19x = 4,736,547,868.16 - Step 5: Solve for x
x = 4,736,547,868.16/79,171.19 - Step 6: Final answer
x = 59,826.66
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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.