Finding the Fourth Proportional to 97,387.65, 134,396.64 and 57,130.41
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Solution
The fourth proportional to 97,387.65, 134,396.64 and 57,130.41 is: 78,840.95
Step by Step Solution
- Step 1: Write the proportion equation
97,387.65 : 134,396.64 = 57,130.41 : x - Step 2: Convert to fraction form
97,387.65/134,396.64 = 57,130.41/x - Step 3: Cross multiply
97,387.65x = 134,396.64 × 57,130.41 - Step 4: Simplify right side
97,387.65x = 7,678,135,145.82 - Step 5: Solve for x
x = 7,678,135,145.82/97,387.65 - Step 6: Final answer
x = 78,840.95
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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.