Finding the Fourth Proportional to 97,031.40, 133,893.80 and 54,589.02
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Solution
The fourth proportional to 97,031.40, 133,893.80 and 54,589.02 is: 75,327.48
Step by Step Solution
- Step 1: Write the proportion equation
97,031.40 : 133,893.80 = 54,589.02 : x - Step 2: Convert to fraction form
97,031.40/133,893.80 = 54,589.02/x - Step 3: Cross multiply
97,031.40x = 133,893.80 × 54,589.02 - Step 4: Simplify right side
97,031.40x = 7,309,131,326.08 - Step 5: Solve for x
x = 7,309,131,326.08/97,031.40 - Step 6: Final answer
x = 75,327.48
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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.