Finding the Fourth Proportional to 88,108.10, 121,585.91 and 47,820.99
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Solution
The fourth proportional to 88,108.10, 121,585.91 and 47,820.99 is: 65,991.20
Step by Step Solution
- Step 1: Write the proportion equation
88,108.10 : 121,585.91 = 47,820.99 : x - Step 2: Convert to fraction form
88,108.10/121,585.91 = 47,820.99/x - Step 3: Cross multiply
88,108.10x = 121,585.91 × 47,820.99 - Step 4: Simplify right side
88,108.10x = 5,814,358,705.80 - Step 5: Solve for x
x = 5,814,358,705.80/88,108.10 - Step 6: Final answer
x = 65,991.20
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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.