Finding the Fourth Proportional to 92,995.11, 128,394.99 and 71,446.44
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Solution
The fourth proportional to 92,995.11, 128,394.99 and 71,446.44 is: 98,643.52
Step by Step Solution
- Step 1: Write the proportion equation
92,995.11 : 128,394.99 = 71,446.44 : x - Step 2: Convert to fraction form
92,995.11/128,394.99 = 71,446.44/x - Step 3: Cross multiply
92,995.11x = 128,394.99 × 71,446.44 - Step 4: Simplify right side
92,995.11x = 9,173,364,949.34 - Step 5: Solve for x
x = 9,173,364,949.34/92,995.11 - Step 6: Final answer
x = 98,643.52
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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.