Finding the Fourth Proportional to 88,044.44, 121,468.14 and 65,129.13
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Solution
The fourth proportional to 88,044.44, 121,468.14 and 65,129.13 is: 89,853.65
Step by Step Solution
- Step 1: Write the proportion equation
88,044.44 : 121,468.14 = 65,129.13 : x - Step 2: Convert to fraction form
88,044.44/121,468.14 = 65,129.13/x - Step 3: Cross multiply
88,044.44x = 121,468.14 × 65,129.13 - Step 4: Simplify right side
88,044.44x = 7,911,114,280.92 - Step 5: Solve for x
x = 7,911,114,280.92/88,044.44 - Step 6: Final answer
x = 89,853.65
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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.