Finding the Fourth Proportional to 97,065.68, 133,939.64 and 54,623.12
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Solution
The fourth proportional to 97,065.68, 133,939.64 and 54,623.12 is: 75,373.72
Step by Step Solution
- Step 1: Write the proportion equation
97,065.68 : 133,939.64 = 54,623.12 : x - Step 2: Convert to fraction form
97,065.68/133,939.64 = 54,623.12/x - Step 3: Cross multiply
97,065.68x = 133,939.64 × 54,623.12 - Step 4: Simplify right side
97,065.68x = 7,316,201,028.48 - Step 5: Solve for x
x = 7,316,201,028.48/97,065.68 - Step 6: Final answer
x = 75,373.72
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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.