Finding the Fourth Proportional to 97,400.64, 134,402.64 and 56,556.79
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Solution
The fourth proportional to 97,400.64, 134,402.64 and 56,556.79 is: 78,042.42
Step by Step Solution
- Step 1: Write the proportion equation
97,400.64 : 134,402.64 = 56,556.79 : x - Step 2: Convert to fraction form
97,400.64/134,402.64 = 56,556.79/x - Step 3: Cross multiply
97,400.64x = 134,402.64 × 56,556.79 - Step 4: Simplify right side
97,400.64x = 7,601,381,213.91 - Step 5: Solve for x
x = 7,601,381,213.91/97,400.64 - Step 6: Final answer
x = 78,042.42
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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.