Finding the Fourth Proportional to 97,891.03, 135,090.08 and 55,449.56
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Solution
The fourth proportional to 97,891.03, 135,090.08 and 55,449.56 is: 76,520.65
Step by Step Solution
- Step 1: Write the proportion equation
97,891.03 : 135,090.08 = 55,449.56 : x - Step 2: Convert to fraction form
97,891.03/135,090.08 = 55,449.56/x - Step 3: Cross multiply
97,891.03x = 135,090.08 × 55,449.56 - Step 4: Simplify right side
97,891.03x = 7,490,685,764.78 - Step 5: Solve for x
x = 7,490,685,764.78/97,891.03 - Step 6: Final answer
x = 76,520.65
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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.