Finding the Fourth Proportional to 81,227.64, 112,117.98 and 47,244.12
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Solution
The fourth proportional to 81,227.64, 112,117.98 and 47,244.12 is: 65,210.75
Step by Step Solution
- Step 1: Write the proportion equation
81,227.64 : 112,117.98 = 47,244.12 : x - Step 2: Convert to fraction form
81,227.64/112,117.98 = 47,244.12/x - Step 3: Cross multiply
81,227.64x = 112,117.98 × 47,244.12 - Step 4: Simplify right side
81,227.64x = 5,296,915,301.28 - Step 5: Solve for x
x = 5,296,915,301.28/81,227.64 - Step 6: Final answer
x = 65,210.75
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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.